suse-su-2021:0869-1
Vulnerability from csaf_suse
Published
2021-03-17 16:28
Modified
2021-03-17 16:28
Summary
Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP2)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP2)
Description of the patch
This update for the Linux Kernel 5.3.18-24_49 fixes several issues. The following security issues were fixed: - CVE-2020-29368: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179664). - CVE-2020-29373: Fixed an issue where kernel unsafely handles the root directory during path lookups, and thus a process inside a mount namespace could escape to unintended filesystem locations (bsc#1179779).
Patchnames
SUSE-2021-869,SUSE-SLE-Module-Live-Patching-15-SP2-2021-869
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 10 for SLE 15 SP2)",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for the Linux Kernel 5.3.18-24_49 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2020-29368: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179664).\n- CVE-2020-29373: Fixed an issue where kernel unsafely handles the root directory during path lookups, and thus a process inside a mount namespace could escape to unintended filesystem locations (bsc#1179779).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2021-869,SUSE-SLE-Module-Live-Patching-15-SP2-2021-869",
        "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_0869-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2021:0869-1",
        "url": "https://www.suse.com/support/update/announcement/2021/suse-su-20210869-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2021:0869-1",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-March/008507.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1179664",
        "url": "https://bugzilla.suse.com/1179664"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1179779",
        "url": "https://bugzilla.suse.com/1179779"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2020-29368 page",
        "url": "https://www.suse.com/security/cve/CVE-2020-29368/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2020-29373 page",
        "url": "https://www.suse.com/security/cve/CVE-2020-29373/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP2)",
    "tracking": {
      "current_release_date": "2021-03-17T16:28:03Z",
      "generator": {
        "date": "2021-03-17T16:28:03Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2021:0869-1",
      "initial_release_date": "2021-03-17T16:28:03Z",
      "revision_history": [
        {
          "date": "2021-03-17T16:28:03Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-24_49-default-2-2.2.ppc64le",
                "product": {
                  "name": "kernel-livepatch-5_3_18-24_49-default-2-2.2.ppc64le",
                  "product_id": "kernel-livepatch-5_3_18-24_49-default-2-2.2.ppc64le"
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
                "product": {
                  "name": "kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
                  "product_id": "kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64",
                  "product_id": "kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-24_49-preempt-2-2.2.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_3_18-24_49-preempt-2-2.2.x86_64",
                  "product_id": "kernel-livepatch-5_3_18-24_49-preempt-2-2.2.x86_64"
                }
              }
            ],
            "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_49-default-2-2.2.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_49-default-2-2.2.ppc64le"
        },
        "product_reference": "kernel-livepatch-5_3_18-24_49-default-2-2.2.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_49-default-2-2.2.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_49-default-2-2.2.s390x"
        },
        "product_reference": "kernel-livepatch-5_3_18-24_49-default-2-2.2.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_49-default-2-2.2.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_49-default-2-2.2.x86_64"
        },
        "product_reference": "kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-29368",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-29368"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-29368",
          "url": "https://www.suse.com/security/cve/CVE-2020-29368"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1179428 for CVE-2020-29368",
          "url": "https://bugzilla.suse.com/1179428"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1179660 for CVE-2020-29368",
          "url": "https://bugzilla.suse.com/1179660"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1179664 for CVE-2020-29368",
          "url": "https://bugzilla.suse.com/1179664"
        }
      ],
      "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_49-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/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_49-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:28:03Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-29368"
    },
    {
      "cve": "CVE-2020-29373",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-29373"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in fs/io_uring.c in the Linux kernel before 5.6. It unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations, aka CID-ff002b30181d.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-29373",
          "url": "https://www.suse.com/security/cve/CVE-2020-29373"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1179434 for CVE-2020-29373",
          "url": "https://bugzilla.suse.com/1179434"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1179779 for CVE-2020-29373",
          "url": "https://bugzilla.suse.com/1179779"
        }
      ],
      "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_49-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-2-2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:28:03Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-29373"
    }
  ]
}


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