SUSE-SU-2021:3361-1: important: Security update for the Linux Kernel (Live Patch 22 for SLE 12 SP5)

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 22 for SLE 12 SP5)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:3361-1
Rating:             important
References:         #1187054 #1188613 
Cross-References:   CVE-2021-3573 CVE-2021-3640
CVSS scores:
                    CVE-2021-3573 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3640 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15-SP3
                    SUSE Linux Enterprise Module for Live Patching 15-SP2
                    SUSE Linux Enterprise Live Patching 12-SP5
______________________________________________________________________________

   An update that fixes two vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-122_83 fixes several issues.

   The following security issues were fixed:

   - CVE-2021-3640: Fixed a user-after-free bug in the function
     sco_sock_sendmsg which could lead to local privilege escalation.
     (bsc#1188613)
   - CVE-2021-3573: Fixed a user-after-free bug in the function
     hci_sock_bound_ioctl which could lead to local privilege escalation.
     (bsc#1187054).


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-SP3:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-3355=1

   - SUSE Linux Enterprise Module for Live Patching 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-3361=1

   - SUSE Linux Enterprise Live Patching 12-SP5:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2021-3373=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x x86_64):

      kernel-livepatch-5_3_18-59_19-default-3-2.1
      kernel-livepatch-5_3_18-59_19-default-debuginfo-3-2.1
      kernel-livepatch-SLE15-SP3_Update_5-debugsource-3-2.1

   - SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x x86_64):

      kernel-livepatch-5_3_18-24_78-default-3-2.1
      kernel-livepatch-5_3_18-24_78-default-debuginfo-3-2.1
      kernel-livepatch-SLE15-SP2_Update_18-debugsource-3-2.1

   - SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64):

      kgraft-patch-4_12_14-122_83-default-3-2.1


References:

   https://www.suse.com/security/cve/CVE-2021-3573.html
   https://www.suse.com/security/cve/CVE-2021-3640.html
   https://bugzilla.suse.com/1187054
   https://bugzilla.suse.com/1188613