Vulnerability-Lookup

CVE-2018-10901 (GCVE-0-2018-10901)

Vulnerability from cvelistv5 – Published: 2018-07-26 17:00 – Updated: 2024-08-05 07:54

Summary

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.

Severity

7.8 (High)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-665

Assigner

redhat CNA under the redhat root

CNA scorecard B 81/100 over 1001 records in the last 180 days details

References

11 references

URL	Tags
http://www.securityfocus.com/bid/104905	vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2018:2393	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:2390	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:2391	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:2392	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:2394	vendor-advisoryx_refsource_REDHAT
https://www.oracle.com/security-alerts/cpujul2020.html	x_refsource_MISC
https://www.oracle.com/technetwork/security-advis…	x_refsource_MISC
https://help.ecostruxureit.com/display/public/UAD…	x_refsource_CONFIRM
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
[UNKNOWN]	kernel:	Affected: n/a	guessed

Date Public

2010-08-02 00:00

Show details on NVD website

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To clipboard

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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2392"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2393"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2394"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-665"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-30T11:25:11+00:00",
      "cve": "CVE-2018-10901",
      "id": "CVE-2018-10901",
      "initial_release_date": "2018-01-01T00:00:00+00:00",
      "product_status:fixed": "369",
      "product_status:known_not_affected": "74",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: kvm: vmx: host GDT limit corruption",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-10901.json",
      "version": "3"
    }
  }
}

RHSA-2018:2393

Vulnerability from csaf_redhat - Published: 2018-08-14 20:19 - Updated: 2026-06-30 11:35

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

3 vulnerabilities in this advisory, including CVE-2018-10901.

CVE-2018-10901

7.8 (High)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 22 products

https://access.redhat.com/errata/RHSA-2018:2393

Open the full advisory

RHSA-2018:2394

Vulnerability from csaf_redhat - Published: 2018-08-14 20:18 - Updated: 2026-06-30 11:35

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2018-10901.

CVE-2018-10901

7.8 (High)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 21 products

https://access.redhat.com/errata/RHSA-2018:2394

Open the full advisory

UBUNTU-CVE-2018-10901 (CVE-2018-10901)

Vulnerability from osv_ubuntu – Published: 2018-07-26 17:29 – Updated: 2025-10-24 04:47 – Source website

Details

Severity

7.8 (High)


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

7.8 (High)


                    
                      CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 (High)


                    
                      CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      high

References

URL

Type

	https://ubuntu.com/security/CVE-2018-10901	REPORT
	https://git.kernel.org/linus/3444d7da1839b851eefe…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2018-10901	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-azure-edge-cloud-tools-5.0.0-1012",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-azure-edge-tools-5.0.0-1012",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-azure-headers-5.0.0-1012",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-buildinfo-5.0.0-1012-azure",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-cloud-tools-5.0.0-1012-azure",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-headers-5.0.0-1012-azure",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-image-unsigned-5.0.0-1012-azure",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-modules-5.0.0-1012-azure",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-modules-extra-5.0.0-1012-azure",
            "binary_version": "5.0.0-1012.12~18.04.2"
          },
          {
            "binary_name": "linux-tools-5.0.0-1012-azure",
            "binary_version": "5.0.0-1012.12~18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "linux-azure-edge",
        "purl": "pkg:deb/ubuntu/linux-azure-edge@5.0.0-1012.12~18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.18.0-1006.6~18.04.1",
        "4.18.0-1007.7~18.04.1",
        "4.18.0-1008.8~18.04.1",
        "5.0.0-1012.12~18.04.2"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in Linux kernel\u0027s KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host\u0027s userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.",
  "id": "UBUNTU-CVE-2018-10901",
  "modified": "2025-10-24T04:47:01Z",
  "published": "2018-07-26T17:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-10901"
    },
    {
      "type": "REPORT",
      "url": "https://git.kernel.org/linus/3444d7da1839b851eefedd372978d8a982316c36"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-10901"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "high",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-10901"
  ]
}

WID-SEC-W-2025-1212

Vulnerability from csaf_certbund - Published: 2019-04-16 22:00 - Updated: 2025-06-02 22:00

Summary

Oracle Communications Applications: Mehrere Schwachstellen

Severity

Mittel

Scope

52 vulnerabilities in this advisory, including CVE-2018-10901.

CVE-2018-10901

Known affected: 24 products

Open the full advisory

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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

CVE-2018-10901 (GCVE-0-2018-10901)

RHSA-2018:2393

RHSA-2018:2394

UBUNTU-CVE-2018-10901 (CVE-2018-10901)

WID-SEC-W-2025-1212

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour