Security update for the Linux Kernel (Live Patch 16 for SLE 15 SP2)

Announcement ID: SUSE-SU-2021:2487-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-22555 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-22555 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-33909 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-33909 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • openSUSE Leap 15.3
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP3
  • SUSE Linux Enterprise Live Patching 15-SP2
  • SUSE Linux Enterprise Live Patching 15-SP3
  • SUSE Linux Enterprise Micro 5.1
  • SUSE Linux Enterprise Micro 5.2
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP3
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP3

An update that solves two vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 5.3.18-24_70 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)

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-SP2
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-2487=1
  • openSUSE Leap 15.3
    zypper in -t patch SUSE-2021-2486=1 SUSE-2021-2485=1 SUSE-2021-2559=1 SUSE-2021-2484=1
  • SUSE Linux Enterprise Live Patching 15-SP3
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-2486=1 SUSE-SLE-Module-Live-Patching-15-SP3-2021-2485=1 SUSE-SLE-Module-Live-Patching-15-SP3-2021-2559=1 SUSE-SLE-Module-Live-Patching-15-SP3-2021-2484=1

Package List:

  • SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64)
    • kernel-livepatch-SLE15-SP2_Update_16-debugsource-2-2.1
    • kernel-livepatch-5_3_18-24_70-default-debuginfo-2-2.1
    • kernel-livepatch-5_3_18-24_70-default-2-2.1
  • openSUSE Leap 15.3 (ppc64le s390x x86_64)
    • kernel-livepatch-5_3_18-59_13-default-2-2.1
    • kernel-livepatch-5_3_18-59_5-default-debuginfo-2-2.1
    • kernel-livepatch-SLE15-SP3_Update_2-debugsource-2-2.1
    • kernel-livepatch-5_3_18-59_5-default-2-2.1
    • kernel-livepatch-5_3_18-59_13-default-debuginfo-2-2.1
    • kernel-livepatch-SLE15-SP3_Update_3-debugsource-2-2.1
    • kernel-livepatch-5_3_18-57-default-debuginfo-4-3.1
    • kernel-livepatch-5_3_18-57-default-4-3.1
    • kernel-livepatch-5_3_18-59_10-default-debuginfo-2-2.1
    • kernel-livepatch-SLE15-SP3_Update_0-debugsource-4-3.1
    • kernel-livepatch-5_3_18-59_10-default-2-2.1
    • kernel-livepatch-SLE15-SP3_Update_1-debugsource-2-2.1
  • openSUSE Leap 15.3 (x86_64)
    • kernel-livepatch-5_3_18-59_13-preempt-2-2.1
    • kernel-livepatch-5_3_18-59_10-preempt-debuginfo-2-2.1
    • kernel-livepatch-5_3_18-57-preempt-4-3.1
    • kernel-livepatch-5_3_18-59_5-preempt-2-2.1
    • kernel-livepatch-5_3_18-59_5-preempt-debuginfo-2-2.1
    • kernel-livepatch-5_3_18-57-preempt-debuginfo-4-3.1
    • kernel-livepatch-5_3_18-59_13-preempt-debuginfo-2-2.1
    • kernel-livepatch-5_3_18-59_10-preempt-2-2.1
  • SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64)
    • kernel-livepatch-5_3_18-59_13-default-2-2.1
    • kernel-livepatch-5_3_18-59_5-default-debuginfo-2-2.1
    • kernel-livepatch-SLE15-SP3_Update_2-debugsource-2-2.1
    • kernel-livepatch-5_3_18-59_5-default-2-2.1
    • kernel-livepatch-5_3_18-59_13-default-debuginfo-2-2.1
    • kernel-livepatch-SLE15-SP3_Update_3-debugsource-2-2.1
    • kernel-livepatch-5_3_18-57-default-debuginfo-4-3.1
    • kernel-livepatch-5_3_18-57-default-4-3.1
    • kernel-livepatch-5_3_18-59_10-default-debuginfo-2-2.1
    • kernel-livepatch-SLE15-SP3_Update_0-debugsource-4-3.1
    • kernel-livepatch-5_3_18-59_10-default-2-2.1
    • kernel-livepatch-SLE15-SP3_Update_1-debugsource-2-2.1

References: