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AUSCERT External Security Bulletin Redistribution
ESB-2022.2313
Security update for the Linux Kernel (Live Patch 26 for SLE 15 SP2)
12 May 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2022-1158 CVE-2022-1011 CVE-2021-39698
Original Bulletin:
https://www.suse.com/support/update/announcement/2022/suse-su-20221634-1
Comment: CVSS (Max): 7.4 CVE-2022-1158 (CVSS:3.1/AV:L/AC:H/PR:N/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:N/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 26 for
SLE 15 SP2)
______________________________________________________________________________
Announcement ID: SUSE-SU-2022:1634-1
Rating: important
References: #1196959 #1197344 #1198133
Cross-References: CVE-2021-39698 CVE-2022-1011 CVE-2022-1158
Affected Products:
SUSE Linux Enterprise High Performance Computing 15-SP2
SUSE Linux Enterprise Module for Live Patching 15-SP2
SUSE Linux Enterprise Server 15-SP2
SUSE Linux Enterprise Server for SAP Applications 15-SP2
______________________________________________________________________________
An update that fixes three vulnerabilities is now available.
Description:
This update for the Linux Kernel 5.3.18-150200_24_112 fixes several issues.
The following security issues were fixed:
o - CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the
user address (bsc#1198133)
o CVE-2022-1011: A use-after-free flaw was found in the FUSE filesystem in
the way a user triggers write(). This flaw allowed a local user to gain
unauthorized access to data from the FUSE filesystem, resulting in
privilege escalation. (bsc#1197344)
o - CVE-2021-39698: In aio_poll_complete_work of aio.c, there was a possible
memory corruption due to a use after free. This could lead to local
escalation of privilege with no additional execution privileges needed.
User interaction is not needed for exploitation. (bsc#1196959)
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-SP2:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2022-1634=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x
x86_64):
kernel-livepatch-5_3_18-150200_24_112-default-2-150200.2.1
kernel-livepatch-5_3_18-150200_24_112-default-debuginfo-2-150200.2.1
kernel-livepatch-SLE15-SP2_Update_26-debugsource-2-150200.2.1
References:
o https://www.suse.com/security/cve/CVE-2021-39698.html
o https://www.suse.com/security/cve/CVE-2022-1011.html
o https://www.suse.com/security/cve/CVE-2022-1158.html
o https://bugzilla.suse.com/1196959
o https://bugzilla.suse.com/1197344
o https://bugzilla.suse.com/1198133
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