SUSE: 2022:0298-1 important: the Linux Kernel (Live Patch 20 for SLE 12 SP4)
Summary
This update for the Linux Kernel 4.12.14-95_74 fixes several issues. The following security issues were fixed: - CVE-2018-25020: Fixed an issue in the BPF subsystem in the Linux kernel mishandled situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. (bsc#1193575) - CVE-2020-3702: Fixed a bug which could be triggered with specifically timed and handcrafted traffic and cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure. (bsc#1191193) - CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673). 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 Live Patching 12-SP4: zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-298=1 SUSE-SLE-Live-Patching-12-SP4-2022-299=1 SUSE-SLE-Live-Patching-12-SP4-2022-300=1 Package List: - SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64): kgraft-patch-4_12_14-95_74-default-10-2.2 kgraft-patch-4_12_14-95_77-default-9-2.2 kgraft-patch-4_12_14-95_80-default-7-2.2
References
#1191529 #1192036 #1193863
Cross- CVE-2018-25020 CVE-2020-3702 CVE-2021-42739
CVSS scores:
CVE-2018-25020 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-3702 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE-2020-3702 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE-2021-42739 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise Live Patching 12-SP4
https://www.suse.com/security/cve/CVE-2018-25020.html
https://www.suse.com/security/cve/CVE-2020-3702.html
https://www.suse.com/security/cve/CVE-2021-42739.html
https://bugzilla.suse.com/1191529
https://bugzilla.suse.com/1192036
https://bugzilla.suse.com/1193863