SUSE: 2022:3123-1 important: the Linux Kernel (Live Patch 2 for SLE 15 SP4)
Summary
This update for the Linux Kernel 5.14.21-150400_24_16 fixes several issues. The following security issues were fixed: - CVE-2020-36516: Fixed an off-path attack via mixed IPID assignment method with the hash-based IPID assignment policy to inject data into a victim's TCP session or terminate that session (bsc#1196867). - CVE-2021-39698: Fixed possible memory corruption in aio_poll_complete_work of aio.c, that could have led to local escalation of privilege with no additional execution privileges needed (bsc#1196959). - CVE-2022-36946: Fixed a remote denial of service attack inside nfqnl_mangle in net/netfilter/nfnetlink_queue.c, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative length (bsc#1201941). 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-SP4: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2022-3123=1 Package List: - SUSE Linux Enterprise Module for Live Patching 15-SP4 (ppc64le s390x x86_64): kernel-livepatch-5_14_21-150400_24_18-default-2-150400.2.1 kernel-livepatch-5_14_21-150400_24_18-default-debuginfo-2-150400.2.1 kernel-livepatch-SLE15-SP4_Update_2-debugsource-2-150400.2.1
References
#1196867 #1196959 #1201941
Cross- CVE-2020-36516 CVE-2021-39698 CVE-2022-36946
CVSS scores:
CVE-2020-36516 (NVD) : 5.9 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
CVE-2020-36516 (SUSE): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVE-2021-39698 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-39698 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2022-36946 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2022-36946 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
SUSE Linux Enterprise High Performance Computing 15-SP4
SUSE Linux Enterprise Module for Live Patching 15-SP4
SUSE Linux Enterprise Server 15-SP4
SUSE Linux Enterprise Server for SAP Applications 15-SP4
https://www.suse.com/security/cve/CVE-2020-36516.html
https://www.suse.com/security/cve/CVE-2021-39698.html
https://www.suse.com/security/cve/CVE-2022-36946.html
https://bugzilla.suse.com/1196867
https://bugzilla.suse.com/1196959
https://bugzilla.suse.com/1201941