suse-su-2021:0849-1
Vulnerability from csaf_suse
Published
2021-03-17 16:24
Modified
2021-03-17 16:24
Summary
Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP2)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP2)
Description of the patch
This update for the Linux Kernel 5.3.18-22 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). - Fixed an issue where NFS client filesystems got unmounted on fail-over (bsc#1182468). - CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault handling, allowing local users to execute code in the kernel (bsc#1181553). - CVE-2020-28374: Fixed insufficient identifier checking in the LIO SCSI target code which could have been used by remote attackers to read or write files via directory traversal in an XCOPY request (bsc#1178684). - CVE-2021-0342: Fixed a potential memory corruption due to a use after free which could have led to local escalation of privilege with System execution privileges required (bsc#1180859).
Patchnames
SUSE-2021-849,SUSE-SLE-Module-Live-Patching-15-SP2-2021-849
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 0 for SLE 15 SP2)",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for the Linux Kernel 5.3.18-22 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- Fixed an issue where NFS client filesystems got unmounted on fail-over (bsc#1182468). \n- CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault handling, allowing local users to execute code in the kernel (bsc#1181553).\n- CVE-2020-28374: Fixed insufficient identifier checking in the LIO SCSI target code which could have been used by remote attackers to read or write files via directory traversal in an XCOPY request (bsc#1178684).\n- CVE-2021-0342: Fixed a potential memory corruption due to a use after free which could have led to local escalation of privilege with System execution privileges required (bsc#1180859).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2021-849,SUSE-SLE-Module-Live-Patching-15-SP2-2021-849",
        "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_0849-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2021:0849-1",
        "url": "https://www.suse.com/support/update/announcement/2021/suse-su-20210849-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2021:0849-1",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-March/008498.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1178684",
        "url": "https://bugzilla.suse.com/1178684"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1179664",
        "url": "https://bugzilla.suse.com/1179664"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1180859",
        "url": "https://bugzilla.suse.com/1180859"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1181553",
        "url": "https://bugzilla.suse.com/1181553"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1182468",
        "url": "https://bugzilla.suse.com/1182468"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2020-28374 page",
        "url": "https://www.suse.com/security/cve/CVE-2020-28374/"
      },
      {
        "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-2021-0342 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-0342/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-3347 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-3347/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP2)",
    "tracking": {
      "current_release_date": "2021-03-17T16:24:20Z",
      "generator": {
        "date": "2021-03-17T16:24:20Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2021:0849-1",
      "initial_release_date": "2021-03-17T16:24:20Z",
      "revision_history": [
        {
          "date": "2021-03-17T16:24:20Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le",
                "product": {
                  "name": "kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le",
                  "product_id": "kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le"
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
                "product": {
                  "name": "kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
                  "product_id": "kernel-livepatch-5_3_18-22-default-8-5.2.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-22-default-8-5.2.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_3_18-22-default-8-5.2.x86_64",
                  "product_id": "kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_3_18-22-preempt-8-5.2.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_3_18-22-preempt-8-5.2.x86_64",
                  "product_id": "kernel-livepatch-5_3_18-22-preempt-8-5.2.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_18-22-default-8-5.2.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP2",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le"
        },
        "product_reference": "kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_3_18-22-default-8-5.2.s390x as component of SUSE Linux Enterprise Live Patching 15 SP2",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x"
        },
        "product_reference": "kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_3_18-22-default-8-5.2.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_18-22-default-8-5.2.x86_64"
        },
        "product_reference": "kernel-livepatch-5_3_18-22-default-8-5.2.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-28374",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-28374"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-28374",
          "url": "https://www.suse.com/security/cve/CVE-2020-28374"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178372 for CVE-2020-28374",
          "url": "https://bugzilla.suse.com/1178372"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178684 for CVE-2020-28374",
          "url": "https://bugzilla.suse.com/1178684"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1180676 for CVE-2020-28374",
          "url": "https://bugzilla.suse.com/1180676"
        }
      ],
      "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_18-22-default-8-5.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/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_18-22-default-8-5.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:24:20Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-28374"
    },
    {
      "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_18-22-default-8-5.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.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_18-22-default-8-5.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.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_18-22-default-8-5.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:24:20Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-29368"
    },
    {
      "cve": "CVE-2021-0342",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-0342"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In tun_get_user of tun.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges required. User interaction is not required for exploitation. Product: Android; Versions: Android kernel; Android ID: A-146554327.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-0342",
          "url": "https://www.suse.com/security/cve/CVE-2021-0342"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1180812 for CVE-2021-0342",
          "url": "https://bugzilla.suse.com/1180812"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1180859 for CVE-2021-0342",
          "url": "https://bugzilla.suse.com/1180859"
        }
      ],
      "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_18-22-default-8-5.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.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_18-22-default-8-5.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:24:20Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-0342"
    },
    {
      "cve": "CVE-2021-3347",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-3347"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-3347",
          "url": "https://www.suse.com/security/cve/CVE-2021-3347"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1181349 for CVE-2021-3347",
          "url": "https://bugzilla.suse.com/1181349"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1181553 for CVE-2021-3347",
          "url": "https://bugzilla.suse.com/1181553"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1190859 for CVE-2021-3347",
          "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 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/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_18-22-default-8-5.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-22-default-8-5.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:24:20Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-3347"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • 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.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.