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AUSCERT External Security Bulletin Redistribution
ESB-2023.2336
Security update for the Linux Kernel RT (Live Patch 5 for SLE 15 SP4)
26 April 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel RT
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2023-1652
Original Bulletin:
https://www.suse.com/support/update/announcement/2023/suse-su-20231978-1
Comment: CVSS (Max): 7.0 CVE-2023-1652 (CVSS:3.1/AV:L/AC:H/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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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Security update for the Linux Kernel RT (Live Patch 5 for SLE 15 SP4)
Announcement ID: SUSE-SU-2023:1978-1
Rating: important
References: o #1209797
Cross-References: o CVE-2023-1652
o CVE-2023-1652 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
S:U/C:H/I:H/A:H
CVSS scores: o CVE-2023-1652 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:H/I:N/A:H
o SUSE Linux Enterprise High Performance Computing 15 SP4
o SUSE Linux Enterprise Live Patching 15-SP4
Affected o SUSE Linux Enterprise Micro 5.3
Products: o SUSE Linux Enterprise Micro 5.4
o SUSE Linux Enterprise Real Time 15 SP4
o SUSE Linux Enterprise Server 15 SP4
o SUSE Linux Enterprise Server for SAP Applications 15 SP4
An update that solves one vulnerability can now be installed.
Description:
This update for the Linux Kernel 5.14.21-150400_15_18 fixes one issue.
The following security issue was fixed:
o CVE-2023-1652: Fixed use-after-free that could lead to DoS and information
leak in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c (bsc#1209788).
Patch Instructions:
To install this SUSE Important 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 15-SP4
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-1978=1
Package List:
o SUSE Linux Enterprise Live Patching 15-SP4 (x86_64)
kernel-livepatch-5_14_21-150400_15_18-rt-debuginfo-2-150400.2.2
kernel-livepatch-5_14_21-150400_15_18-rt-2-150400.2.2
kernel-livepatch-SLE15-SP4-RT_Update_5-debugsource-2-150400.2.2
References:
o https://www.suse.com/security/cve/CVE-2023-1652.html
o https://bugzilla.suse.com/show_bug.cgiid=1209797
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