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SUSE: 2021:1733-1 Important: Linux Kernel Live Patch 17 Security Fix

suse
Calendar Grey May 25, 2021
Scroller Suse
Crucial SUSE update for Linux Kernel Live Patch 17 addresses serious concerns in performance reliability and security measures.
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-122_66 fixes several issues. The following security issues were fixed: - CVE-2020-36322: Fixed an issue inside the FUSE filesystem implementation where fuse_do_getattr() calls make_bad_inode() in inappropriate situations, could have caused a system crash. NOTE: the original fix for this vulnerability was incomplete, and its incompleteness is tracked as CVE-2021-28950 (bsc#1184952). - CVE-2021-3444: Fixed incorrect mod32 BPF verifier truncation (bsc#1184171). - CVE-2021-3444: Fixed incorrect mod32 BPF verifier truncation (bsc#1184171). 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:

Topics%20covered

Topics Covered

security advisory system stability SUSE important security fix Linux Kernel live patch BPF verifier

References

#1184171 #1184952

Cross- CVE-2020-36322 CVE-2021-3444

CVSS scores:

CVE-2020-36322 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVE-2021-3444 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-3444 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise Live Patching 12-SP5

https://www.suse.com/security/cve/CVE-2020-36322.html

https://www.suse.com/security/cve/CVE-2021-3444.html

https://bugzilla.suse.com/1184171

https://bugzilla.suse.com/1184952

Severity
important
Lowest
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Medium
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Announcement ID: SUSE-SU-2021:1733-1
Rating: important

Topics%20covered

Topics Covered

security advisory system stability SUSE important security fix Linux Kernel live patch BPF verifier

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