Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP3)

Announcement ID: SUSE-SU-2019:3256-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2018-20856 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20856 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2019-10220 ( SUSE ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVE-2019-10220 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2019-13272 ( SUSE ): 7.4 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2019-13272 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2019-13272 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2019-15239 ( SUSE ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2019-15239 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 12 SP3
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3
  • SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3

An update that solves four vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 4.4.175-94_79 fixes several issues.

The following security issues were fixed:

  • CVE-2018-20856: Fixed a use-after-free in block/blk-core.c due to improper error handling (bsc#1156331).
  • CVE-2019-13272: Fixed a privilege escalation from user to root due to improper handling of credentials by leveraging certain scenarios with a parent-child process relationship (bsc#1156321).
  • CVE-2019-15239: Fixed a vulnerability where a local attacker could have triggered multiple use-after-free conditions resulted in privilege escalation (bsc#1156317).
  • CVE-2019-10220: Fixed an issue where samba servers could inject relative paths in directory entry lists (bsc#1153108).

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 Server for SAP Applications 12 SP3
    zypper in -t patch SUSE-SLE-SAP-12-SP3-2019-3258=1 SUSE-SLE-SAP-12-SP3-2019-3256=1 SUSE-SLE-SAP-12-SP3-2019-3257=1
  • SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-ESPOS-2019-3258=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2019-3256=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2019-3257=1
  • SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2019-3257=1 SUSE-SLE-SERVER-12-SP3-2019-3258=1 SUSE-SLE-SERVER-12-SP3-2019-3256=1

Package List:

  • SUSE Linux Enterprise Server for SAP Applications 12 SP3 (ppc64le x86_64)
    • kgraft-patch-4_4_175-94_79-default-7-2.5
    • kgraft-patch-4_4_176-94_88-default-6-2.5
    • kgraft-patch-4_4_178-94_91-default-debuginfo-6-2.5
    • kgraft-patch-4_4_176-94_88-default-debuginfo-6-2.5
    • kgraft-patch-4_4_178-94_91-default-6-2.5
    • kgraft-patch-4_4_175-94_79-default-debuginfo-7-2.5
  • SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3 (x86_64)
    • kgraft-patch-4_4_175-94_79-default-7-2.5
    • kgraft-patch-4_4_176-94_88-default-6-2.5
    • kgraft-patch-4_4_178-94_91-default-debuginfo-6-2.5
    • kgraft-patch-4_4_176-94_88-default-debuginfo-6-2.5
    • kgraft-patch-4_4_178-94_91-default-6-2.5
    • kgraft-patch-4_4_175-94_79-default-debuginfo-7-2.5
  • SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3 (ppc64le x86_64)
    • kgraft-patch-4_4_175-94_79-default-7-2.5
    • kgraft-patch-4_4_176-94_88-default-6-2.5
    • kgraft-patch-4_4_178-94_91-default-debuginfo-6-2.5
    • kgraft-patch-4_4_176-94_88-default-debuginfo-6-2.5
    • kgraft-patch-4_4_178-94_91-default-6-2.5
    • kgraft-patch-4_4_175-94_79-default-debuginfo-7-2.5

References: