SUSE Security Update: Security update for the Linux Kernel (Live Patch 26 for SLE 15)
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Announcement ID:    SUSE-SU-2022:0245-1
Rating:             important
References:         #1192042 #1193863 
Cross-References:   CVE-2018-25020 CVE-2021-0935
CVSS scores:
                    CVE-2018-25020 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-0935 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15
                    SUSE Linux Enterprise Live Patching 12-SP4
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   An update that fixes two vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-150_78 fixes several issues.

   The following security issues were fixed:

   - CVE-2018-25020: Fixed an issue in the BPF subsystem in the Linux kernel
     mishandled situations with a long jump over an instruction sequence
     where inner instructions require substantial expansions into multiple
     BPF instructions, leading to an overflow. (bsc#1193575)
   - CVE-2021-0935: Fixed out of bounds write due to a use after free which
     could lead to local escalation of privilege with System execution
     privileges needed in ip6_xmit. (bsc#1192032)


Patch Instructions:

   To install this SUSE Security 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 Module for Live Patching 15:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2022-245=1

   - SUSE Linux Enterprise Live Patching 12-SP4:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-240=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):

      kernel-livepatch-4_12_14-150_78-default-2-2.2
      kernel-livepatch-4_12_14-150_78-default-debuginfo-2-2.2

   - SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):

      kgraft-patch-4_12_14-95_83-default-2-2.2


References:

   https://www.suse.com/security/cve/CVE-2018-25020.html
   https://www.suse.com/security/cve/CVE-2021-0935.html
   https://bugzilla.suse.com/1192042
   https://bugzilla.suse.com/1193863