Vulnerability-Lookup

SUSE-SU-2021:1252-1

Vulnerability from csaf_suse - Published: 2021-04-19 06:58 - Updated: 2021-04-19 06:58

Summary

Security update for xen

Severity

Important

Notes

Title of the patch: Security update for xen

Description of the patch: This update for xen fixes the following issues: - CVE-2021-20257: xen: infinite loop issue in the e1000 NIC emulator (bsc#1182846). - CVE-2021-27379: Fixed an issue where entries in the IOMMU were not being updated under certain circumstances due to improper backport of XSA-321 (XSA-366, bsc#1182431).

Patchnames: HPE-Helion-OpenStack-8-2021-1252,SUSE-2021-1252,SUSE-OpenStack-Cloud-8-2021-1252,SUSE-OpenStack-Cloud-Crowbar-8-2021-1252,SUSE-SLE-SAP-12-SP3-2021-1252,SUSE-SLE-SERVER-12-SP3-2021-1252,SUSE-SLE-SERVER-12-SP3-BCL-2021-1252

CVE-2021-20257

3.2 (Low)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Affected products

Recommended 36 products

Product	Version	Remediation
Unresolved product id: HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: HPE Helion OpenStack 8:xen-tools-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: HPE Helion OpenStack 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-LTSS:xen-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-LTSS:xen-doc-html-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-32bit-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-domU-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-doc-html-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-32bit-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-domU-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud 8:xen-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud 8:xen-doc-html-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud 8:xen-libs-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud 8:xen-tools-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud Crowbar 8:xen-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud Crowbar 8:xen-doc-html-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud Crowbar 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud Crowbar 8:xen-libs-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud Crowbar 8:xen-tools-4.9.4_16-3.83.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud Crowbar 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64	—	Vendor Fix

Threats

Impact low

CVE-2021-27379

7.9 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H

Affected products

Recommended 36 products, the same list as for CVE-2021-20257

Threats

Impact important

References

13 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1182431	self
https://bugzilla.suse.com/1182846	self
https://www.suse.com/security/cve/CVE-2021-20257/	self
https://www.suse.com/security/cve/CVE-2021-27379/	self
https://www.suse.com/security/cve/CVE-2021-20257	external
https://bugzilla.suse.com/1182577	external
https://bugzilla.suse.com/1182846	external
https://www.suse.com/security/cve/CVE-2021-27379	external
https://bugzilla.suse.com/1182431	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for xen",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for xen fixes the following issues:\n\n- CVE-2021-20257: xen: infinite loop issue in the e1000 NIC emulator (bsc#1182846).\n- CVE-2021-27379: Fixed an issue where entries in the IOMMU were not being updated \n  under certain circumstances due to improper backport of XSA-321 (XSA-366, bsc#1182431).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "HPE-Helion-OpenStack-8-2021-1252,SUSE-2021-1252,SUSE-OpenStack-Cloud-8-2021-1252,SUSE-OpenStack-Cloud-Crowbar-8-2021-1252,SUSE-SLE-SAP-12-SP3-2021-1252,SUSE-SLE-SERVER-12-SP3-2021-1252,SUSE-SLE-SERVER-12-SP3-BCL-2021-1252",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_1252-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2021:1252-1",
        "url": "https://www.suse.com/support/update/announcement/2021/suse-su-20211252-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2021:1252-1",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008654.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1182431",
        "url": "https://bugzilla.suse.com/1182431"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1182846",
        "url": "https://bugzilla.suse.com/1182846"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-20257 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-20257/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-27379 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-27379/"
      }
    ],
    "title": "Security update for xen",
    "tracking": {
      "current_release_date": "2021-04-19T06:58:25Z",
      "generator": {
        "date": "2021-04-19T06:58:25Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2021:1252-1",
      "initial_release_date": "2021-04-19T06:58:25Z",
      "revision_history": [
        {
          "date": "2021-04-19T06:58:25Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xen-4.9.4_16-3.83.1.aarch64",
                "product": {
                  "name": "xen-4.9.4_16-3.83.1.aarch64",
                  "product_id": "xen-4.9.4_16-3.83.1.aarch64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-devel-4.9.4_16-3.83.1.aarch64",
                "product": {
                  "name": "xen-devel-4.9.4_16-3.83.1.aarch64",
                  "product_id": "xen-devel-4.9.4_16-3.83.1.aarch64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-doc-html-4.9.4_16-3.83.1.aarch64",
                "product": {
                  "name": "xen-doc-html-4.9.4_16-3.83.1.aarch64",
                  "product_id": "xen-doc-html-4.9.4_16-3.83.1.aarch64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-libs-4.9.4_16-3.83.1.aarch64",
                "product": {
                  "name": "xen-libs-4.9.4_16-3.83.1.aarch64",
                  "product_id": "xen-libs-4.9.4_16-3.83.1.aarch64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-tools-4.9.4_16-3.83.1.aarch64",
                "product": {
                  "name": "xen-tools-4.9.4_16-3.83.1.aarch64",
                  "product_id": "xen-tools-4.9.4_16-3.83.1.aarch64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-tools-domU-4.9.4_16-3.83.1.aarch64",
                "product": {
                  "name": "xen-tools-domU-4.9.4_16-3.83.1.aarch64",
                  "product_id": "xen-tools-domU-4.9.4_16-3.83.1.aarch64"
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xen-libs-64bit-4.9.4_16-3.83.1.aarch64_ilp32",
                "product": {
                  "name": "xen-libs-64bit-4.9.4_16-3.83.1.aarch64_ilp32",
                  "product_id": "xen-libs-64bit-4.9.4_16-3.83.1.aarch64_ilp32"
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64_ilp32"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xen-devel-4.9.4_16-3.83.1.i586",
                "product": {
                  "name": "xen-devel-4.9.4_16-3.83.1.i586",
                  "product_id": "xen-devel-4.9.4_16-3.83.1.i586"
                }
              },
              {
                "category": "product_version",
                "name": "xen-libs-4.9.4_16-3.83.1.i586",
                "product": {
                  "name": "xen-libs-4.9.4_16-3.83.1.i586",
                  "product_id": "xen-libs-4.9.4_16-3.83.1.i586"
                }
              },
              {
                "category": "product_version",
                "name": "xen-tools-domU-4.9.4_16-3.83.1.i586",
                "product": {
                  "name": "xen-tools-domU-4.9.4_16-3.83.1.i586",
                  "product_id": "xen-tools-domU-4.9.4_16-3.83.1.i586"
                }
              }
            ],
            "category": "architecture",
            "name": "i586"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xen-4.9.4_16-3.83.1.x86_64",
                "product": {
                  "name": "xen-4.9.4_16-3.83.1.x86_64",
                  "product_id": "xen-4.9.4_16-3.83.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-doc-html-4.9.4_16-3.83.1.x86_64",
                "product": {
                  "name": "xen-doc-html-4.9.4_16-3.83.1.x86_64",
                  "product_id": "xen-doc-html-4.9.4_16-3.83.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-libs-4.9.4_16-3.83.1.x86_64",
                "product": {
                  "name": "xen-libs-4.9.4_16-3.83.1.x86_64",
                  "product_id": "xen-libs-4.9.4_16-3.83.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
                "product": {
                  "name": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
                  "product_id": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-tools-4.9.4_16-3.83.1.x86_64",
                "product": {
                  "name": "xen-tools-4.9.4_16-3.83.1.x86_64",
                  "product_id": "xen-tools-4.9.4_16-3.83.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-tools-domU-4.9.4_16-3.83.1.x86_64",
                "product": {
                  "name": "xen-tools-domU-4.9.4_16-3.83.1.x86_64",
                  "product_id": "xen-tools-domU-4.9.4_16-3.83.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "xen-devel-4.9.4_16-3.83.1.x86_64",
                "product": {
                  "name": "xen-devel-4.9.4_16-3.83.1.x86_64",
                  "product_id": "xen-devel-4.9.4_16-3.83.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "HPE Helion OpenStack 8",
                "product": {
                  "name": "HPE Helion OpenStack 8",
                  "product_id": "HPE Helion OpenStack 8",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:hpe-helion-openstack:8"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "SUSE OpenStack Cloud 8",
                "product": {
                  "name": "SUSE OpenStack Cloud 8",
                  "product_id": "SUSE OpenStack Cloud 8",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:suse-openstack-cloud:8"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "SUSE OpenStack Cloud Crowbar 8",
                "product": {
                  "name": "SUSE OpenStack Cloud Crowbar 8",
                  "product_id": "SUSE OpenStack Cloud Crowbar 8",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:suse-openstack-cloud-crowbar:8"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Server for SAP Applications 12 SP3",
                "product": {
                  "name": "SUSE Linux Enterprise Server for SAP Applications 12 SP3",
                  "product_id": "SUSE Linux Enterprise Server for SAP Applications 12 SP3",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sles_sap:12:sp3"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Server 12 SP3-LTSS",
                "product": {
                  "name": "SUSE Linux Enterprise Server 12 SP3-LTSS",
                  "product_id": "SUSE Linux Enterprise Server 12 SP3-LTSS",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sles-ltss:12:sp3"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Server 12 SP3-BCL",
                "product": {
                  "name": "SUSE Linux Enterprise Server 12 SP3-BCL",
                  "product_id": "SUSE Linux Enterprise Server 12 SP3-BCL",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sles-bcl:12:sp3"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-4.9.4_16-3.83.1.x86_64 as component of HPE Helion OpenStack 8",
          "product_id": "HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "HPE Helion OpenStack 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-doc-html-4.9.4_16-3.83.1.x86_64 as component of HPE Helion OpenStack 8",
          "product_id": "HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-doc-html-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "HPE Helion OpenStack 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-4.9.4_16-3.83.1.x86_64 as component of HPE Helion OpenStack 8",
          "product_id": "HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "HPE Helion OpenStack 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64 as component of HPE Helion OpenStack 8",
          "product_id": "HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "HPE Helion OpenStack 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-4.9.4_16-3.83.1.x86_64 as component of HPE Helion OpenStack 8",
          "product_id": "HPE Helion OpenStack 8:xen-tools-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "HPE Helion OpenStack 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-domU-4.9.4_16-3.83.1.x86_64 as component of HPE Helion OpenStack 8",
          "product_id": "HPE Helion OpenStack 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-domU-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "HPE Helion OpenStack 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud 8",
          "product_id": "SUSE OpenStack Cloud 8:xen-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-doc-html-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud 8",
          "product_id": "SUSE OpenStack Cloud 8:xen-doc-html-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-doc-html-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud 8",
          "product_id": "SUSE OpenStack Cloud 8:xen-libs-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud 8",
          "product_id": "SUSE OpenStack Cloud 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud 8",
          "product_id": "SUSE OpenStack Cloud 8:xen-tools-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-domU-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud 8",
          "product_id": "SUSE OpenStack Cloud 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-domU-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud Crowbar 8",
          "product_id": "SUSE OpenStack Cloud Crowbar 8:xen-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud Crowbar 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-doc-html-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud Crowbar 8",
          "product_id": "SUSE OpenStack Cloud Crowbar 8:xen-doc-html-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-doc-html-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud Crowbar 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud Crowbar 8",
          "product_id": "SUSE OpenStack Cloud Crowbar 8:xen-libs-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud Crowbar 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud Crowbar 8",
          "product_id": "SUSE OpenStack Cloud Crowbar 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud Crowbar 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud Crowbar 8",
          "product_id": "SUSE OpenStack Cloud Crowbar 8:xen-tools-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud Crowbar 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-domU-4.9.4_16-3.83.1.x86_64 as component of SUSE OpenStack Cloud Crowbar 8",
          "product_id": "SUSE OpenStack Cloud Crowbar 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-domU-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE OpenStack Cloud Crowbar 8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server for SAP Applications 12 SP3",
          "product_id": "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server for SAP Applications 12 SP3"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-doc-html-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server for SAP Applications 12 SP3",
          "product_id": "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-doc-html-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-doc-html-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server for SAP Applications 12 SP3"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server for SAP Applications 12 SP3",
          "product_id": "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server for SAP Applications 12 SP3"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server for SAP Applications 12 SP3",
          "product_id": "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-32bit-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server for SAP Applications 12 SP3"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server for SAP Applications 12 SP3",
          "product_id": "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server for SAP Applications 12 SP3"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-domU-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server for SAP Applications 12 SP3",
          "product_id": "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-domU-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server for SAP Applications 12 SP3"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-LTSS",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-LTSS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-doc-html-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-LTSS",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-doc-html-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-doc-html-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-LTSS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-LTSS",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-LTSS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-LTSS",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-32bit-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-LTSS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-LTSS",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-LTSS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-domU-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-LTSS",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-domU-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-LTSS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-BCL",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-BCL"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-doc-html-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-BCL",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-doc-html-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-BCL"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-BCL",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-BCL"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-BCL",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-BCL"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-BCL",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-BCL"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xen-tools-domU-4.9.4_16-3.83.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP3-BCL",
          "product_id": "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
        },
        "product_reference": "xen-tools-domU-4.9.4_16-3.83.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP3-BCL"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-20257",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-20257"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-tools-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-20257",
          "url": "https://www.suse.com/security/cve/CVE-2021-20257"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1182577 for CVE-2021-20257",
          "url": "https://bugzilla.suse.com/1182577"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1182846 for CVE-2021-20257",
          "url": "https://bugzilla.suse.com/1182846"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.2,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-04-19T06:58:25Z",
          "details": "low"
        }
      ],
      "title": "CVE-2021-20257"
    },
    {
      "cve": "CVE-2021-27379",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-27379"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access, and possibly cause a denial of service (host OS crash) or gain privileges. This occurs because a backport missed a flush, and thus IOMMU updates were not always correct. NOTE: this issue exists because of an incomplete fix for CVE-2020-15565.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-tools-4.9.4_16-3.83.1.x86_64",
          "HPE Helion OpenStack 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-libs-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-tools-4.9.4_16-3.83.1.x86_64",
          "SUSE OpenStack Cloud Crowbar 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-27379",
          "url": "https://www.suse.com/security/cve/CVE-2021-27379"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1182431 for CVE-2021-27379",
          "url": "https://bugzilla.suse.com/1182431"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.9,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H",
            "version": "3.1"
          },
          "products": [
            "HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "HPE Helion OpenStack 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP3-LTSS:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP3:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-doc-html-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-libs-32bit-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-libs-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-tools-4.9.4_16-3.83.1.x86_64",
            "SUSE OpenStack Cloud Crowbar 8:xen-tools-domU-4.9.4_16-3.83.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-04-19T06:58:25Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-27379"
    }
  ]
}

CVE-2021-20257 (GCVE-0-2021-20257)

Vulnerability from cvelistv5 – Published: 2022-03-16 14:12 – Updated: 2024-08-03 17:37

Summary

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Severity

No CVSS data available.

CWE

CWE-835

Assigner

redhat redhat root

References

7 references

URL	Tags
https://www.openwall.com/lists/oss-security/2021/…	x_refsource_MISC
https://lists.gnu.org/archive/html/qemu-devel/202…	x_refsource_MISC
https://github.com/qemu/qemu/commit/3de46e6fc489c…	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1930087	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2022042…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/202208-27	vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
n/a	QEMU	Affected: Fixed-In v6.2.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:37:23.120Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2021/02/25/2"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1930087"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20220425-0003/"
          },
          {
            "name": "GLSA-202208-27",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202208-27"
          },
          {
            "name": "[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "QEMU",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed-In v6.2.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-09-05T05:06:44.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.openwall.com/lists/oss-security/2021/02/25/2"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1930087"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20220425-0003/"
        },
        {
          "name": "GLSA-202208-27",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202208-27"
        },
        {
          "name": "[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-20257",
    "datePublished": "2022-03-16T14:12:26.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:37:23.120Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2021-27379 (GCVE-0-2021-27379)

Vulnerability from cvelistv5 – Published: 2021-02-18 15:05 – Updated: 2024-08-03 20:48

Summary

An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access, and possibly cause a denial of service (host OS crash) or gain privileges. This occurs because a backport missed a flush, and thus IOMMU updates were not always correct. NOTE: this issue exists because of an incomplete fix for CVE-2020-15565.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
http://xenbits.xen.org/xsa/advisory-366.html	x_refsource_CONFIRM
https://xenbits.xen.org/xsa/advisory-366.html	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/02/23/1	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4888	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:48:16.398Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://xenbits.xen.org/xsa/advisory-366.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://xenbits.xen.org/xsa/advisory-366.html"
          },
          {
            "name": "[oss-security] 20210223 Xen Security Advisory 366 v2 (CVE-2021-27379) - missed flush in XSA-321 backport",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/02/23/1"
          },
          {
            "name": "DSA-4888",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-4888"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access, and possibly cause a denial of service (host OS crash) or gain privileges. This occurs because a backport missed a flush, and thus IOMMU updates were not always correct. NOTE: this issue exists because of an incomplete fix for CVE-2020-15565."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-11T11:06:19.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://xenbits.xen.org/xsa/advisory-366.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://xenbits.xen.org/xsa/advisory-366.html"
        },
        {
          "name": "[oss-security] 20210223 Xen Security Advisory 366 v2 (CVE-2021-27379) - missed flush in XSA-321 backport",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/02/23/1"
        },
        {
          "name": "DSA-4888",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2021/dsa-4888"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-27379",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access, and possibly cause a denial of service (host OS crash) or gain privileges. This occurs because a backport missed a flush, and thus IOMMU updates were not always correct. NOTE: this issue exists because of an incomplete fix for CVE-2020-15565."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://xenbits.xen.org/xsa/advisory-366.html",
              "refsource": "CONFIRM",
              "url": "http://xenbits.xen.org/xsa/advisory-366.html"
            },
            {
              "name": "https://xenbits.xen.org/xsa/advisory-366.html",
              "refsource": "MISC",
              "url": "https://xenbits.xen.org/xsa/advisory-366.html"
            },
            {
              "name": "[oss-security] 20210223 Xen Security Advisory 366 v2 (CVE-2021-27379) - missed flush in XSA-321 backport",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/02/23/1"
            },
            {
              "name": "DSA-4888",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4888"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-27379",
    "datePublished": "2021-02-18T15:05:25.000Z",
    "dateReserved": "2021-02-18T00:00:00.000Z",
    "dateUpdated": "2024-08-03T20:48:16.398Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

SUSE-SU-2021:1252-1

CVE-2021-20257 (GCVE-0-2021-20257)

CVE-2021-27379 (GCVE-0-2021-27379)

Tags

Sightings

Nomenclature

Related by attack behaviour