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AUSCERT External Security Bulletin Redistribution
ESB-2022.6036
Security update for the Linux Kernel (Live Patch 30 for SLE 15)
21 November 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2022-42703 CVE-2022-2588 CVE-2021-33655
CVE-2020-36558 CVE-2020-36557
Original Bulletin:
https://www.suse.com/support/update/announcement/2022/suse-su-20224129-1
Comment: CVSS (Max): 7.8 CVE-2022-2588 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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SUSE Security Update: Security update for the Linux Kernel (Live Patch 30 for
SLE 15)
______________________________________________________________________________
Announcement ID: SUSE-SU-2022:4129-1
Rating: important
References: #1201742 #1201752 #1202087 #1203613 #1204170 #1204381
Cross-References: CVE-2020-36557 CVE-2020-36558 CVE-2021-33655 CVE-2022-2588
CVE-2022-42703
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 solves 5 vulnerabilities and has one errata is now available.
Description:
This update for the Linux Kernel 4.12.14-150000_150_92 fixes several issues.
The following security issues were fixed:
o 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).
o CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could
lead to a NULL pointer dereference and general protection fault (bnc#
1200910).
o CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO
(bnc#1201635).
o CVE-2022-2588: Fixed use-after-free in cls_route (bsc#1202096).
o CVE-2022-42703: Fixed use-after-free in mm/rmap.c related to leaf anon_vma
double reuse (bnc#1204168).
o Fixed incorrect handling of empty arguments array in execve() (bsc#
1200571).
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:
o SUSE Linux Enterprise Module for Live Patching 15:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2022-4125=1
SUSE-SLE-Module-Live-Patching-15-2022-4126=1
SUSE-SLE-Module-Live-Patching-15-2022-4127=1
SUSE-SLE-Module-Live-Patching-15-2022-4128=1
SUSE-SLE-Module-Live-Patching-15-2022-4129=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):
kernel-livepatch-4_12_14-150000_150_89-default-9-150000.2.2
kernel-livepatch-4_12_14-150000_150_89-default-debuginfo-9-150000.2.2
kernel-livepatch-4_12_14-150000_150_92-default-6-150000.2.1
kernel-livepatch-4_12_14-150000_150_92-default-debuginfo-6-150000.2.1
kernel-livepatch-4_12_14-150_78-default-15-150000.2.2
kernel-livepatch-4_12_14-150_78-default-debuginfo-15-150000.2.2
kernel-livepatch-4_12_14-150_83-default-11-150000.2.2
kernel-livepatch-4_12_14-150_83-default-debuginfo-11-150000.2.2
kernel-livepatch-4_12_14-150_86-default-10-150000.2.2
kernel-livepatch-4_12_14-150_86-default-debuginfo-10-150000.2.2
References:
o https://www.suse.com/security/cve/CVE-2020-36557.html
o https://www.suse.com/security/cve/CVE-2020-36558.html
o https://www.suse.com/security/cve/CVE-2021-33655.html
o https://www.suse.com/security/cve/CVE-2022-2588.html
o https://www.suse.com/security/cve/CVE-2022-42703.html
o https://bugzilla.suse.com/1201742
o https://bugzilla.suse.com/1201752
o https://bugzilla.suse.com/1202087
o https://bugzilla.suse.com/1203613
o https://bugzilla.suse.com/1204170
o https://bugzilla.suse.com/1204381
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