Vulnerability-Lookup

CVE-2021-3537 (GCVE-0-2021-3537)

Vulnerability from cvelistv5 – Published: 2021-05-14 19:50 – Updated: 2026-10-14 09:49

Summary

A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.

Severity

5.9 (Medium)


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

CWE

CWE-476

Assigner

redhat CNA under the redhat root

CNA scorecard B 81/100 over 1002 records in the last 180 days details

References

10 references

URL	Tags
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=1956522	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/202107-05	vendor-advisoryx_refsource_GENTOO
https://security.netapp.com/advisory/ntap-2021062…	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://www.oracle.com/security-alerts/cpujul2022.html	x_refsource_MISC
https://cert-portal.siemens.com/productcert/html/…

Impacted products

4 products

Vendor	Product	Version	CPE status
n/a	libxml2	Affected: libxml2 2.9.11
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)	guessed
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)	guessed
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)	guessed

Show details on NVD website

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                    "matchCriteriaId": "C2A5B24D-BDF2-423C-98EA-A40778C01A05",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D26F3E23-F1A9-45E7-9E5F-0C0A24EE3783",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:enterprise_manager_base_platform:13.5.0.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6E8758C8-87D3-450A-878B-86CE8C9FC140",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B095CC03-7077-4A58-AB25-CC5380CDCE5A",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "EED6C8C2-F986-4CFD-A343-AD2340F850F2",
                    "versionEndIncluding": "8.0.26",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:openjdk:8:update301:*:*:*:*:*:*",
                    "matchCriteriaId": "56F2883B-6A1B-4081-8877-07AF3A73F6CD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D9DB4A14-2EF5-4B54-95D2-75E6CF9AA0A9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:real_user_experience_insight:13.4.1.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CADD7026-EF85-40A5-8563-7A34C6941B1F",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:oracle:real_user_experience_insight:13.5.1.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "58F019E8-F68D-41B5-9480-0A81616F2E7C",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad encontrada en libxml2 en versiones anteriores a 2.9.11 muestra que no propag\u00f3 errores al analizar el contenido mixto XML, causando una desreferencia de NULL.\u0026#xa0;Si un documento XML que no es confiable fue analizado en modo de recuperaci\u00f3n y pos-comprobado, el fallo podr\u00eda usarse para bloquear la aplicaci\u00f3n.\u0026#xa0;La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema"
          }
        ],
        "id": "CVE-2021-3537",
        "lastModified": "2026-10-14T10:17:45.043",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-05-14T20:15:16.553",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Issue Tracking",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1956522"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/202107-05"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210625-0002/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Not Applicable"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1956522"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/202107-05"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210625-0002/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Not Applicable"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
          },
          {
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-14T12:52:08+00:00",
      "cve": "CVE-2021-3537",
      "id": "CVE-2021-3537",
      "initial_release_date": "2021-05-01T00:00:00+00:00",
      "product_status:fixed": "193",
      "product_status:known_affected": "10",
      "product_status:known_not_affected": "4",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "libxml2: NULL pointer dereference when post-validating mixed content parsed in recovery mode",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3537.json",
      "version": "3"
    }
  }
}

SUSE-SU-2021:1658-1

Vulnerability from csaf_suse - Published: 2021-05-19 16:20 - Updated: 2026-09-20 13:57

Summary

Security update for libxml2

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2021-3537.

CVE-2021-3537

7.5 (High)


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

Recommended: 173 products

Open the full advisory

UBUNTU-CVE-2021-3537 (CVE-2021-3537)

Vulnerability from osv_ubuntu – Published: 2021-05-14 20:15 – Updated: 2026-04-22 07:39 – Source website

Details

Severity

5.9 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-3537	REPORT
	https://gitlab.gnome.org/GNOME/libxml2/-/issues/243	REPORT
	https://gitlab.gnome.org/GNOME/libxml2/-/issues/244	REPORT
	https://gitlab.gnome.org/GNOME/libxml2/-/issues/245	REPORT
	https://gitlab.gnome.org/GNOME/libxml2/-/commit/b…	REPORT
	https://ubuntu.com/security/notices/USN-4991-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-3537	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libxml2",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm2"
          },
          {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm2"
          },
          {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libxml2",
        "purl": "pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.13+esm2?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.1+dfsg1-3ubuntu4.13+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.9.1+dfsg1-3ubuntu2",
        "2.9.1+dfsg1-3ubuntu3",
        "2.9.1+dfsg1-3ubuntu4",
        "2.9.1+dfsg1-3ubuntu4.1",
        "2.9.1+dfsg1-3ubuntu4.2",
        "2.9.1+dfsg1-3ubuntu4.3",
        "2.9.1+dfsg1-3ubuntu4.4",
        "2.9.1+dfsg1-3ubuntu4.5",
        "2.9.1+dfsg1-3ubuntu4.6",
        "2.9.1+dfsg1-3ubuntu4.7",
        "2.9.1+dfsg1-3ubuntu4.8",
        "2.9.1+dfsg1-3ubuntu4.9",
        "2.9.1+dfsg1-3ubuntu4.10",
        "2.9.1+dfsg1-3ubuntu4.11",
        "2.9.1+dfsg1-3ubuntu4.12",
        "2.9.1+dfsg1-3ubuntu4.13",
        "2.9.1+dfsg1-3ubuntu4.13+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libxml2",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm1"
          },
          {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm1"
          },
          {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libxml2",
        "purl": "pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.7+esm1?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.3+dfsg1-1ubuntu0.7+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.9.2+zdfsg1-4",
        "2.9.2+zdfsg1-4ubuntu1",
        "2.9.2+zdfsg1-4ubuntu2",
        "2.9.2+zdfsg1-4ubuntu3",
        "2.9.3+dfsg1-1",
        "2.9.3+dfsg1-1ubuntu0.1",
        "2.9.3+dfsg1-1ubuntu0.2",
        "2.9.3+dfsg1-1ubuntu0.3",
        "2.9.3+dfsg1-1ubuntu0.4",
        "2.9.3+dfsg1-1ubuntu0.5",
        "2.9.3+dfsg1-1ubuntu0.6",
        "2.9.3+dfsg1-1ubuntu0.7"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libxml2",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.4"
          },
          {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.4"
          },
          {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.4"
          },
          {
            "binary_name": "python3-libxml2",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libxml2",
        "purl": "pkg:deb/ubuntu/libxml2@2.9.4+dfsg1-6.1ubuntu1.4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.4+dfsg1-6.1ubuntu1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.9.4+dfsg1-4ubuntu1",
        "2.9.4+dfsg1-5ubuntu1",
        "2.9.4+dfsg1-5ubuntu2",
        "2.9.4+dfsg1-5.1ubuntu1",
        "2.9.4+dfsg1-5.2ubuntu1",
        "2.9.4+dfsg1-6.1ubuntu1",
        "2.9.4+dfsg1-6.1ubuntu1.2",
        "2.9.4+dfsg1-6.1ubuntu1.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libxml2",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.1"
          },
          {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.1"
          },
          {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.1"
          },
          {
            "binary_name": "python3-libxml2",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libxml2",
        "purl": "pkg:deb/ubuntu/libxml2@2.9.10+dfsg-5ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.10+dfsg-5ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.9.4+dfsg1-7ubuntu3",
        "2.9.4+dfsg1-7ubuntu5",
        "2.9.4+dfsg1-8ubuntu1",
        "2.9.4+dfsg1-8ubuntu2",
        "2.9.4+dfsg1-8ubuntu3",
        "2.9.10+dfsg-1ubuntu3",
        "2.9.10+dfsg-4build1",
        "2.9.10+dfsg-5"
      ]
    }
  ],
  "aliases": [],
  "details": "A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.",
  "id": "UBUNTU-CVE-2021-3537",
  "modified": "2026-04-22T07:39:46Z",
  "published": "2021-05-14T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3537"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/243"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/244"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/245"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/babe75030c7f64a37826bb3342317134568bef61"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4991-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-3537"
    }
  ],
  "related": [
    "USN-4991-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-3537"
  ]
}

VDE-2022-010

Vulnerability from csaf_phoenixcontactgmbhcokg - Published: 2022-04-12 06:00 - Updated: 2025-05-22 13:03

Summary

PHOENIX CONTACT: Multiple Linux component vulnerabilities fixed in latest AXC F x152 LTS release

Scope

60 vulnerabilities in this advisory, including CVE-2021-3537.

CVE-2021-3537

5.9 (Medium)


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

Known affected: 4 products Fixed: 4 products

Open the full advisory

WID-SEC-W-2023-0395

Vulnerability from csaf_certbund - Published: 2023-02-14 23:00 - Updated: 2025-11-18 23:00

Summary

Splunk Splunk Enterprise: Mehrere Schwachstellen

Severity

Hoch

Scope

23 vulnerabilities in this advisory, including CVE-2021-3537.

CVE-2021-3537

Known affected: 6 products

Open the full advisory

WID-SEC-W-2023-1151

Vulnerability from csaf_certbund - Published: 2021-05-09 22:00 - Updated: 2025-06-30 22:00

Summary

libxml2: Schwachstelle ermöglicht Denial of Service

Severity

Mittel

Scope

1 vulnerability in this advisory, including CVE-2021-3537.

CVE-2021-3537

Known affected: 22 products

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WID-SEC-W-2023-1614

Vulnerability from csaf_certbund - Published: 2023-06-29 22:00 - Updated: 2023-10-25 22:00

Summary

Tenable Security Nessus Network Monitor: Mehrere Schwachstellen

Severity

Hoch

Scope

173 vulnerabilities in this advisory, including CVE-2021-3537.

CVE-2021-3537

In Tenable Security Nessus Network Monitor existieren mehrere Schwachstellen. Die Fehler bestehen unter anderem in Komponenten von Drittanbietern wie c-ares, curl, libbzip2, libpcre, libxml2, sqlite und OpenSSL. Ein Angreifer kann diese Schwachstellen ausnutzen, um beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen und Daten zu manipulieren. Die erfolgreiche Ausnutzung einiger dieser Schwachstellen erfordert eine Benutzerinteraktion oder erhöhte Rechte.

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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.

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CVE-2021-3537 (GCVE-0-2021-3537)

SUSE-SU-2021:1658-1

UBUNTU-CVE-2021-3537 (CVE-2021-3537)

VDE-2022-010

WID-SEC-W-2023-0395

WID-SEC-W-2023-1151

WID-SEC-W-2023-1614

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Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour