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AUSCERT External Security Bulletin Redistribution
ESB-2022.4447
Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP4)
8 September 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Linux kernel
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2022-36946 CVE-2021-39698 CVE-2020-36516
Original Bulletin:
https://www.suse.com/support/update/announcement/2022/suse-su-20223123-1
Comment: CVSS (Max): 8.1 CVE-2020-36516 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
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SUSE Security Update: Security update for the Linux Kernel (Live
______________________________________________________________________________
Announcement ID: SUSE-SU-2022:3123-1
Rating: important
References: #1196867 #1196959 #1201941
Cross-References: CVE-2020-36516 CVE-2021-39698 CVE-2022-36946
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
______________________________________________________________________________
Patch 2 for
SLE 15 SP4)
An update that fixes three vulnerabilities is now available.
Description:
This update for the Linux Kernel 5.14.21-150400_24_16 fixes several issues.
The following security issues were fixed:
o 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).
o 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).
o 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:
o 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:
o 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:
o https://www.suse.com/security/cve/CVE-2020-36516.html
o https://www.suse.com/security/cve/CVE-2021-39698.html
o https://www.suse.com/security/cve/CVE-2022-36946.html
o https://bugzilla.suse.com/1196867
o https://bugzilla.suse.com/1196959
o https://bugzilla.suse.com/1201941
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