suse-su-2021:2559-1
Vulnerability from csaf_suse
Published
2021-07-29 11:24
Modified
2021-07-29 11:24
Summary
Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP3)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP3)
Description of the patch
This update for the Linux Kernel 5.3.18-59_10 fixes several issues. The following security issues were fixed: - CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (bsc#1188062) - CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)
Patchnames
SUSE-2021-2559,SUSE-SLE-Module-Live-Patching-15-SP3-2021-2559
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 2 for SLE 15 SP3)",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for the Linux Kernel 5.3.18-59_10 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (bsc#1188062)\n- CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2021-2559,SUSE-SLE-Module-Live-Patching-15-SP3-2021-2559",
        "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_2559-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2021:2559-1",
        "url": "https://www.suse.com/support/update/announcement/2021/suse-su-20212559-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2021:2559-1",
        "url": "https://lists.suse.com/pipermail/sle-updates/2021-July/019748.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1188117",
        "url": "https://bugzilla.suse.com/1188117"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1188257",
        "url": "https://bugzilla.suse.com/1188257"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-22555 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-22555/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-33909 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-33909/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP3)",
    "tracking": {
      "current_release_date": "2021-07-29T11:24:20Z",
      "generator": {
        "date": "2021-07-29T11:24:20Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2021:2559-1",
      "initial_release_date": "2021-07-29T11:24:20Z",
      "revision_history": [
        {
          "date": "2021-07-29T11:24:20Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
                "product": {
                  "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
                  "product_id": "kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le"
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
                "product": {
                  "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
                  "product_id": "kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64",
                  "product_id": "kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-59_10-preempt-2-2.1.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_3_18-59_10-preempt-2-2.1.x86_64",
                  "product_id": "kernel-livepatch-5_3_18-59_10-preempt-2-2.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Live Patching 15 SP3",
                "product": {
                  "name": "SUSE Linux Enterprise Live Patching 15 SP3",
                  "product_id": "SUSE Linux Enterprise Live Patching 15 SP3",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sle-module-live-patching:15:sp3"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP3",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le"
        },
        "product_reference": "kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP3"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP3",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x"
        },
        "product_reference": "kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP3"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP3",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64"
        },
        "product_reference": "kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP3"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-22555",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-22555"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-22555",
          "url": "https://www.suse.com/security/cve/CVE-2021-22555"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1188116 for CVE-2021-22555",
          "url": "https://bugzilla.suse.com/1188116"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1188117 for CVE-2021-22555",
          "url": "https://bugzilla.suse.com/1188117"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1188411 for CVE-2021-22555",
          "url": "https://bugzilla.suse.com/1188411"
        }
      ],
      "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 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.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 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-07-29T11:24:20Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-22555"
    },
    {
      "cve": "CVE-2021-33909",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-33909"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-33909",
          "url": "https://www.suse.com/security/cve/CVE-2021-33909"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1188062 for CVE-2021-33909",
          "url": "https://bugzilla.suse.com/1188062"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1188063 for CVE-2021-33909",
          "url": "https://bugzilla.suse.com/1188063"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1188257 for CVE-2021-33909",
          "url": "https://bugzilla.suse.com/1188257"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1189302 for CVE-2021-33909",
          "url": "https://bugzilla.suse.com/1189302"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1190859 for CVE-2021-33909",
          "url": "https://bugzilla.suse.com/1190859"
        }
      ],
      "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 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.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 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_10-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-07-29T11:24:20Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-33909"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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