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

Announcement ID:	SUSE-SU-2021:2487-1
Rating:	important
References:	bsc#1188117 bsc#1188257
Cross-References:	CVE-2021-22555 CVE-2021-33909
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:

• https://www.suse.com/security/cve/CVE-2021-22555.html
• https://www.suse.com/security/cve/CVE-2021-33909.html
• https://bugzilla.suse.com/show_bug.cgi?id=1188117
• https://bugzilla.suse.com/show_bug.cgi?id=1188257