Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP2) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2021:4090-1 Final 1 1 2021-12-14T15:01:29Z current 2021-12-14T15:01:29Z 2021-12-14T15:01:29Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP2) This update for the Linux Kernel 5.3.18-24_49 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) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2021-4090,SUSE-SLE-Module-Live-Patching-15-SP2-2021-4086,SUSE-SLE-Module-Live-Patching-15-SP2-2021-4089,SUSE-SLE-Module-Live-Patching-15-SP2-2021-4090,SUSE-SLE-Module-Live-Patching-15-SP2-2021-4091,SUSE-SLE-Module-Live-Patching-15-SP2-2021-4092 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2021/suse-su-20214090-1/ Link for SUSE-SU-2021:4090-1 https://lists.suse.com/pipermail/sle-security-updates/2021-December/009909.html E-Mail link for SUSE-SU-2021:4090-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1191813 SUSE Bug 1191813 https://bugzilla.suse.com/1192048 SUSE Bug 1192048 https://www.suse.com/security/cve/CVE-2021-0941/ SUSE CVE CVE-2021-0941 page https://www.suse.com/security/cve/CVE-2021-20322/ SUSE CVE CVE-2021-20322 page SUSE Linux Enterprise Live Patching 15 SP2 kernel-livepatch-5_3_18-24_46-default-14-2.2 kernel-livepatch-5_3_18-24_46-preempt-14-2.2 kernel-livepatch-5_3_18-24_53_4-default-7-2.1 kernel-livepatch-5_3_18-24_52-default-12-2.2 kernel-livepatch-5_3_18-24_43-default-14-2.2 kernel-livepatch-5_3_18-24_49-default-13-2.2 kernel-livepatch-5_3_18-24_53_4-default-7-2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP2 kernel-livepatch-5_3_18-24_52-default-12-2.2 as a component of SUSE Linux Enterprise Live Patching 15 SP2 kernel-livepatch-5_3_18-24_46-default-14-2.2 as a component of SUSE Linux Enterprise Live Patching 15 SP2 kernel-livepatch-5_3_18-24_43-default-14-2.2 as a component of SUSE Linux Enterprise Live Patching 15 SP2 kernel-livepatch-5_3_18-24_49-default-13-2.2 as a component of SUSE Linux Enterprise Live Patching 15 SP2 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.Product: AndroidVersions: Android kernelAndroid ID: A-154177719References: Upstream kernel CVE-2021-0941 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_43-default-14-2.2 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-14-2.2 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-13-2.2 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_52-default-12-2.2 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_53_4-default-7-2.1 important 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-20214090-1/ https://www.suse.com/security/cve/CVE-2021-0941.html CVE-2021-0941 https://bugzilla.suse.com/1192045 SUSE Bug 1192045 https://bugzilla.suse.com/1192048 SUSE Bug 1192048 A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. CVE-2021-20322 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_43-default-14-2.2 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-14-2.2 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_49-default-13-2.2 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_52-default-12-2.2 SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_53_4-default-7-2.1 important 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-20214090-1/ https://www.suse.com/security/cve/CVE-2021-20322.html CVE-2021-20322 https://bugzilla.suse.com/1191790 SUSE Bug 1191790 https://bugzilla.suse.com/1191813 SUSE Bug 1191813 https://bugzilla.suse.com/1193290 SUSE Bug 1193290