SUSE-SU-2022:4027-1: important: Security update for the Linux Kernel (Live Patch 31 for SLE 15)
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Thu Nov 17 02:20:37 UTC 2022
SUSE Security Update: Security update for the Linux Kernel (Live Patch 31 for SLE 15)
______________________________________________________________________________
Announcement ID: SUSE-SU-2022:4027-1
Rating: important
References: #1201742 #1201752 #1202087 #1203613 #1204170
Cross-References: CVE-2020-36557 CVE-2020-36558 CVE-2021-33655
CVE-2022-2588 CVE-2022-42703
CVSS scores:
CVE-2020-36557 (NVD) : 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2020-36557 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-36558 (NVD) : 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2020-36558 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-33655 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2021-33655 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-2588 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-42703 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2022-42703 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Module for Live Patching 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
______________________________________________________________________________
An update that fixes 5 vulnerabilities is now available.
Description:
This update for the Linux Kernel 4.12.14-150000_150_95 fixes several
issues.
The following security issues were fixed:
- CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl
and closing/opening of ttys that could have led to a use-after-free
(bnc#1201429).
- CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could
lead to a NULL pointer dereference and general protection fault
(bnc#1200910).
- CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO
(bnc#1201635).
- CVE-2022-2588: Fixed use-after-free in cls_route (bsc#1202096).
- CVE-2022-42703: Fixed use-after-free in mm/rmap.c related to leaf
anon_vma double reuse (bnc#1204168).
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:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2022-4027=1
Package List:
- SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):
kernel-livepatch-4_12_14-150000_150_95-default-4-150000.2.1
kernel-livepatch-4_12_14-150000_150_95-default-debuginfo-4-150000.2.1
References:
https://www.suse.com/security/cve/CVE-2020-36557.html
https://www.suse.com/security/cve/CVE-2020-36558.html
https://www.suse.com/security/cve/CVE-2021-33655.html
https://www.suse.com/security/cve/CVE-2022-2588.html
https://www.suse.com/security/cve/CVE-2022-42703.html
https://bugzilla.suse.com/1201742
https://bugzilla.suse.com/1201752
https://bugzilla.suse.com/1202087
https://bugzilla.suse.com/1203613
https://bugzilla.suse.com/1204170
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