Security update for the Linux Kernel (Live Patch 13 for SLE 15 SP1)

Announcement ID: SUSE-SU-2020:3190-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-14381 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-14381 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-14386 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-14386 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-14386 ( NVD ): 6.7 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-24394 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-24394 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  • CVE-2020-25212 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-25212 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 12 SP4
  • SUSE Linux Enterprise High Performance Computing 12 SP5
  • SUSE Linux Enterprise High Performance Computing 15 SP1
  • SUSE Linux Enterprise Live Patching 15-SP1
  • SUSE Linux Enterprise Live Patching 12-SP5
  • SUSE Linux Enterprise Live Patching 12-SP4
  • SUSE Linux Enterprise Server 12 SP4
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server 15 SP1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • SUSE Linux Enterprise Server for SAP Applications 15 SP1

An update that solves four vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 4.12.14-197_48 fixes several issues.

The following security issues were fixed:

  • CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait operation, which could have lead to memory corruption and possibly privilege escalation (bsc#1176011).
  • CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c (bsc#1176381).
  • CVE-2020-14386: Fixed a memory corruption which could have lead to an attacker gaining root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity (bsc#1176069).
  • CVE-2020-24394: The NFS server code can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support. This occurs because the current umask is not considered (bsc#1175518).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Live Patching 15-SP1
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2020-3190=1 SUSE-SLE-Module-Live-Patching-15-SP1-2020-3189=1 SUSE-SLE-Module-Live-Patching-15-SP1-2020-3172=1
  • SUSE Linux Enterprise Live Patching 12-SP5
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2020-3203=1 SUSE-SLE-Live-Patching-12-SP5-2020-3224=1 SUSE-SLE-Live-Patching-12-SP5-2020-3232=1 SUSE-SLE-Live-Patching-12-SP5-2020-3223=1
  • SUSE Linux Enterprise Live Patching 12-SP4
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2020-3212=1 SUSE-SLE-Live-Patching-12-SP4-2020-3210=1

Package List:

  • SUSE Linux Enterprise Live Patching 15-SP1 (ppc64le x86_64)
    • kernel-livepatch-4_12_14-197_48-default-3-2.1
    • kernel-livepatch-4_12_14-197_51-default-3-2.1
    • kernel-livepatch-4_12_14-197_45-default-3-2.2
  • SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
    • kgraft-patch-4_12_14-122_29-default-3-2.1
    • kgraft-patch-4_12_14-122_26-default-3-2.2
    • kgraft-patch-4_12_14-122_23-default-3-2.2
    • kgraft-patch-4_12_14-122_32-default-3-2.1
  • SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64)
    • kgraft-patch-4_12_14-95_54-default-3-2.2
    • kgraft-patch-4_12_14-95_57-default-3-2.1

References: