SUSE: 2021:0840-1 Important: Kernel Patch for Live Patching
suse
March 17, 2021
An update that fixes two vulnerabilities is now available
Summary
This update for the Linux Kernel 5.3.18-24_46 fixes several issues. The following security issues were fixed: - CVE-2020-29368: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179664). - CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault handling, allowing local users to execute code in the kernel (bsc#1181553). 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: - SUSE Linux Enterprise Module for Live Patching 15-SP2: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-840=1 Package List:
Topics Covered
References
#1179664 #1181553
Cross- CVE-2020-29368 CVE-2021-3347
CVSS scores:
CVE-2020-29368 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-29368 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-3347 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-3347 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP2
https://www.suse.com/security/cve/CVE-2020-29368.html
https://www.suse.com/security/cve/CVE-2021-3347.html
https://bugzilla.suse.com/1179664
https://bugzilla.suse.com/1181553
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Announcement ID: SUSE-SU-2021:0840-1
Rating: important
Topics Covered
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