Security update for the Linux Kernel (Live Patch 38 for SLE 12 SP3)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 38 for SLE 12 SP3)
Announcement ID: SUSE-SU-2021:1074-1
Rating: important
References: #1165631 #1176931 #1177513 #1182717 #1183120 #1183491
Cross-References:CVE-2020-0429 CVE-2020-1749 CVE-2020-25645 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365
Affected Products:
  • SUSE Linux Enterprise Server for SAP 12-SP3
  • SUSE Linux Enterprise Server 12-SP3-LTSS

An update that fixes 6 vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.180-94_141 fixes several issues.
The following security issues were fixed:

  • CVE-2021-27365: Fixed an issue where data structures did not have appropriate length constraints or checks, and could exceed the PAGE_SIZE value (bsc#1183491).
  • CVE-2021-27363: Fixed a kernel pointer leak which could have been used to determine the address of the iscsi_transport structure (bsc#1183120).
  • CVE-2021-27364: Fixed an issue where an unprivileged user could craft Netlink messages (bsc#1182717).
  • CVE-2020-25645: Fixed an an issue in IPsec that caused traffic between two Geneve endpoints to be unencrypted (bsc#1177513).
  • CVE-2020-0429: Fixed a memory corruption due to a use after free which could have led to local escalation of privilege with System execution privileges needed (bsc#1176931).
  • CVE-2020-1749: Use ip6_dst_lookup_flow instead of ip6_dst_lookup (bsc#1165631).

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 Server for SAP 12-SP3:
    zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-1074=1
  • SUSE Linux Enterprise Server 12-SP3-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-1074=1

Package List:

  • SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):
    • kgraft-patch-4_4_180-94_141-default-2-2.2
    • kgraft-patch-4_4_180-94_141-default-debuginfo-2-2.2
  • SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64):
    • kgraft-patch-4_4_180-94_141-default-2-2.2
    • kgraft-patch-4_4_180-94_141-default-debuginfo-2-2.2

References: