SUSE-SU-2022:0996-1

Vulnerability from csaf_suse - Published: 2022-03-29 09:42 - Updated: 2022-03-29 09:42
Summary
Security update for the Linux Kernel (Live Patch 25 for SLE 15 SP2)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 25 for SLE 15 SP2)
Description of the patch
This update for the Linux Kernel 5.3.18-24_107 fixes one issue. The following security issue was fixed: - CVE-2021-0920: Fixed a local privilege escalation due to a use-after-free vulnerability in unix_scm_to_skb of af_unix (bsc#1193731).
Patchnames
SUSE-2022-996,SUSE-SLE-Module-Live-Patching-15-SP2-2022-996
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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 the Linux Kernel (Live Patch 25 for SLE 15 SP2)",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for the Linux Kernel 5.3.18-24_107 fixes one issue.\n\nThe following security issue was fixed:\n\n- CVE-2021-0920: Fixed a local privilege escalation due to a use-after-free vulnerability in unix_scm_to_skb of af_unix (bsc#1193731).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2022-996,SUSE-SLE-Module-Live-Patching-15-SP2-2022-996",
        "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-2022_0996-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2022:0996-1",
        "url": "https://www.suse.com/support/update/announcement/2022/suse-su-20220996-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2022:0996-1",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-March/010551.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1194463",
        "url": "https://bugzilla.suse.com/1194463"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-0920 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-0920/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 25 for SLE 15 SP2)",
    "tracking": {
      "current_release_date": "2022-03-29T09:42:20Z",
      "generator": {
        "date": "2022-03-29T09:42:20Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2022:0996-1",
      "initial_release_date": "2022-03-29T09:42:20Z",
      "revision_history": [
        {
          "date": "2022-03-29T09:42:20Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le",
                "product": {
                  "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le",
                  "product_id": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le"
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x",
                "product": {
                  "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x",
                  "product_id": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64",
                  "product_id": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-24_107-preempt-2-150200.2.1.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_3_18-24_107-preempt-2-150200.2.1.x86_64",
                  "product_id": "kernel-livepatch-5_3_18-24_107-preempt-2-150200.2.1.x86_64"
                }
              }
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            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Live Patching 15 SP2",
                "product": {
                  "name": "SUSE Linux Enterprise Live Patching 15 SP2",
                  "product_id": "SUSE Linux Enterprise Live Patching 15 SP2",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sle-module-live-patching:15:sp2"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP2",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le"
        },
        "product_reference": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP2",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x"
        },
        "product_reference": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP2",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64"
        },
        "product_reference": "kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-0920",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-0920"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-0920",
          "url": "https://www.suse.com/security/cve/CVE-2021-0920"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1193731 for CVE-2021-0920",
          "url": "https://bugzilla.suse.com/1193731"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1194463 for CVE-2021-0920",
          "url": "https://bugzilla.suse.com/1194463"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1195939 for CVE-2021-0920",
          "url": "https://bugzilla.suse.com/1195939"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1199255 for CVE-2021-0920",
          "url": "https://bugzilla.suse.com/1199255"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1200084 for CVE-2021-0920",
          "url": "https://bugzilla.suse.com/1200084"
        }
      ],
      "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": [
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_107-default-2-150200.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2022-03-29T09:42:20Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-0920"
    }
  ]
}


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Sightings

Author Source Type Date

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.