Security update for the Linux Kernel (Live Patch 18 for SLE 12 SP4)

Announcement ID:	SUSE-SU-2021:4038-1
Rating:	important
References:	bsc#1191813 bsc#1192048
Cross-References:	CVE-2021-0941 CVE-2021-20322
CVSS scores:	CVE-2021-0941 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-0941 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2021-20322 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVE-2021-20322 ( NVD ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected Products:	openSUSE Leap 15.3 SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise High Performance Computing 15 SUSE Linux Enterprise High Performance Computing 15 SP1 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-SP1 SUSE Linux Enterprise Live Patching 15 SUSE Linux Enterprise Live Patching 12-SP5 SUSE Linux Enterprise Live Patching 12-SP4 SUSE Linux Enterprise Live Patching 15-SP3 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server 15 SUSE Linux Enterprise Server 15 SP1 SUSE Linux Enterprise Server 15 SP2 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SUSE Linux Enterprise Server for SAP Applications 15 SP1 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 4.12.14-95_68 fixes several issues.

The following security issues were fixed:

• CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192045).
• CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)

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 12-SP4
  zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2021-4034=1 SUSE-SLE-Live-Patching-12-SP4-2021-4038=1 SUSE-SLE-Live-Patching-12-SP4-2021-4037=1 SUSE-SLE-Live-Patching-12-SP4-2021-4036=1 SUSE-SLE-Live-Patching-12-SP4-2021-4035=1
• SUSE Linux Enterprise Live Patching 12-SP5
  zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2021-4033=1 SUSE-SLE-Live-Patching-12-SP5-2021-4032=1 SUSE-SLE-Live-Patching-12-SP5-2021-4031=1 SUSE-SLE-Live-Patching-12-SP5-2021-4030=1 SUSE-SLE-Live-Patching-12-SP5-2021-4029=1 SUSE-SLE-Live-Patching-12-SP5-2021-4028=1 SUSE-SLE-Live-Patching-12-SP5-2021-4027=1 SUSE-SLE-Live-Patching-12-SP5-2021-4026=1 SUSE-SLE-Live-Patching-12-SP5-2021-4025=1 SUSE-SLE-Live-Patching-12-SP5-2021-4024=1 SUSE-SLE-Live-Patching-12-SP5-2021-4023=1 SUSE-SLE-Live-Patching-12-SP5-2021-4022=1
• SUSE Linux Enterprise Live Patching 15
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2021-4047=1 SUSE-SLE-Module-Live-Patching-15-2021-4050=1 SUSE-SLE-Module-Live-Patching-15-2021-4049=1 SUSE-SLE-Module-Live-Patching-15-2021-4048=1
• SUSE Linux Enterprise Live Patching 15-SP1
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2021-4046=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-4045=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-4044=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-4043=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-4042=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-4041=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-4040=1
• SUSE Linux Enterprise Live Patching 15-SP2
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-4091=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-4090=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-4092=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-4089=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-4086=1
• openSUSE Leap 15.3
  zypper in -t patch SUSE-2021-4099=1
• SUSE Linux Enterprise Live Patching 15-SP3
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-4099=1

Package List:

• SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64)
  • kgraft-patch-4_12_14-95_71-default-12-2.2
  • kgraft-patch-4_12_14-95_77-default-8-2.1
  • kgraft-patch-4_12_14-95_68-default-13-2.2
  • kgraft-patch-4_12_14-95_80-default-6-2.1
  • kgraft-patch-4_12_14-95_74-default-9-2.1
• SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
  • kgraft-patch-4_12_14-122_71-default-9-2.1
  • kgraft-patch-4_12_14-122_88-default-3-2.1
  • kgraft-patch-4_12_14-122_66-default-10-2.1
  • kgraft-patch-4_12_14-122_63-default-12-2.2
  • kgraft-patch-4_12_14-122_80-default-6-2.1
  • kgraft-patch-4_12_14-122_83-default-5-2.1
  • kgraft-patch-4_12_14-122_57-default-14-2.2
  • kgraft-patch-4_12_14-122_77-default-7-2.1
  • kgraft-patch-4_12_14-122_54-default-14-2.2
  • kgraft-patch-4_12_14-122_91-default-3-2.1
  • kgraft-patch-4_12_14-122_60-default-13-2.2
  • kgraft-patch-4_12_14-122_74-default-7-2.1
• SUSE Linux Enterprise Live Patching 15 (ppc64le x86_64)
  • kernel-livepatch-4_12_14-150_69-default-debuginfo-12-2.2
  • kernel-livepatch-4_12_14-150_75-default-debuginfo-6-2.1
  • kernel-livepatch-4_12_14-150_72-default-debuginfo-9-2.1
  • kernel-livepatch-4_12_14-150_75-default-6-2.1
  • kernel-livepatch-4_12_14-150_66-default-debuginfo-13-2.2
  • kernel-livepatch-4_12_14-150_66-default-13-2.2
  • kernel-livepatch-4_12_14-150_72-default-9-2.1
  • kernel-livepatch-4_12_14-150_69-default-12-2.2
• SUSE Linux Enterprise Live Patching 15-SP1 (ppc64le x86_64)
  • kernel-livepatch-4_12_14-197_89-default-9-2.1
  • kernel-livepatch-4_12_14-197_86-default-12-2.2
  • kernel-livepatch-4_12_14-197_78-default-14-2.2
  • kernel-livepatch-4_12_14-197_83-default-13-2.2
  • kernel-livepatch-4_12_14-197_92-default-8-2.1
  • kernel-livepatch-4_12_14-197_99-default-6-2.1
  • kernel-livepatch-4_12_14-197_75-default-14-2.2
• SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64)
  • kernel-livepatch-5_3_18-24_53_4-default-debuginfo-7-2.1
  • kernel-livepatch-5_3_18-24_46-default-debuginfo-14-2.2
  • kernel-livepatch-5_3_18-24_52-default-debuginfo-12-2.2
  • kernel-livepatch-SLE15-SP2_Update_10-debugsource-13-2.2
  • kernel-livepatch-5_3_18-24_43-default-debuginfo-14-2.2
  • kernel-livepatch-5_3_18-24_43-default-14-2.2
  • kernel-livepatch-5_3_18-24_52-default-12-2.2
  • kernel-livepatch-5_3_18-24_46-default-14-2.2
  • kernel-livepatch-SLE15-SP2_Update_11-debugsource-12-2.2
  • kernel-livepatch-SLE15-SP2_Update_15-debugsource-7-2.1
  • kernel-livepatch-5_3_18-24_53_4-default-7-2.1
  • kernel-livepatch-5_3_18-24_49-default-debuginfo-13-2.2
  • kernel-livepatch-SLE15-SP2_Update_8-debugsource-14-2.2
  • kernel-livepatch-5_3_18-24_49-default-13-2.2
  • kernel-livepatch-SLE15-SP2_Update_9-debugsource-14-2.2
• openSUSE Leap 15.3 (ppc64le s390x x86_64)
  • kernel-livepatch-5_3_18-57-default-debuginfo-9-3.1
  • kernel-livepatch-SLE15-SP3_Update_0-debugsource-9-3.1
  • kernel-livepatch-5_3_18-57-default-9-3.1
• openSUSE Leap 15.3 (x86_64)
  • kernel-livepatch-5_3_18-57-preempt-9-3.1
  • kernel-livepatch-5_3_18-57-preempt-debuginfo-9-3.1
• SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64)
  • kernel-livepatch-5_3_18-57-default-debuginfo-9-3.1
  • kernel-livepatch-SLE15-SP3_Update_0-debugsource-9-3.1
  • kernel-livepatch-5_3_18-57-default-9-3.1

References:

• https://www.suse.com/security/cve/CVE-2021-0941.html
• https://www.suse.com/security/cve/CVE-2021-20322.html
• https://bugzilla.suse.com/show_bug.cgi?id=1191813
• https://bugzilla.suse.com/show_bug.cgi?id=1192048