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AUSCERT External Security Bulletin Redistribution
ESB-2021.2513
Security update for the Linux Kernel (Live Patch 12 for SLE 12 SP5)
23 July 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-23133 CVE-2021-0512
Reference: ESB-2021.2249
ESB-2021.2221
ESB-2021.2217
ESB-2021.1976
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20212453-1
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SUSE Security Update: Security update for the Linux Kernel (Live Patch 12 for
SLE 12 SP5)
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:2453-1
Rating: important
References: #1185901 #1187597
Cross-References: CVE-2021-0512 CVE-2021-23133
Affected Products:
SUSE Linux Enterprise Live Patching 12-SP5
______________________________________________________________________________
An update that fixes two vulnerabilities is now available.
Description:
This update for the Linux Kernel 4.12.14-122_51 fixes several issues.
The following security issues were fixed:
o CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to
local escalation of privilege with no additional execution privileges
needed. (bsc#1187597)
o CVE-2021-23133: Fixed a race condition in the SCTP sockets that can lead to
kernel privilege escalation from the context of a network service or an
unprivileged process. (bsc#1185901)
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 Live Patching 12-SP5:
zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2021-2452=1
SUSE-SLE-Live-Patching-12-SP5-2021-2453=1
Package List:
o SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64):
kgraft-patch-4_12_14-122_51-default-10-2.2
kgraft-patch-4_12_14-122_54-default-8-2.2
References:
o https://www.suse.com/security/cve/CVE-2021-0512.html
o https://www.suse.com/security/cve/CVE-2021-23133.html
o https://bugzilla.suse.com/1185901
o https://bugzilla.suse.com/1187597
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The University of Queensland
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