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SUSE: 2022:1318-1 Important: Kernel Live Patch Fixes Three Issues

suse
Calendar Grey April 23, 2022
Dist Suse Esm H88
This patch resolves multiple security flaws within the Linux Kernel, improving protection for SUSE Enterprise platforms.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-95_80 fixes several issues. The following security issues were fixed: - CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the netfilter subsystem. This vulnerability gives an attacker a powerful primitive that can be used to both read from and write to relative stack data, which can lead to arbitrary code execution. (bsc#1197335) - CVE-2022-1011: Fixed an use-after-free vulnerability which could allow a local attacker to retireve (partial) /etc/shadow hashes or any other data from filesystem when he can mount a FUSE filesystems. (bsc#1197344) - CVE-2021-39713: Fixed a race condition in the network scheduling subsystem which could lead to a use-after-free (bsc#1197211). Patch Instructions:

Topics%20covered

Topics Covered

security advisory code execution important kernel use after free live patch network scheduling

References

#1197211 #1197335 #1197344

Cross- CVE-2021-39713 CVE-2022-1011 CVE-2022-1016

CVSS scores:

CVE-2021-39713 (NVD) : 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-39713 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1011 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1011 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1016 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Products:

SUSE Linux Enterprise Live Patching 12-SP4

https://www.suse.com/security/cve/CVE-2021-39713.html

https://www.suse.com/security/cve/CVE-2022-1011.html

https://www.suse.com/security/cve/CVE-2022-1016.html

https://bugzilla.suse.com/1197211

https://bugzilla.suse.com/1197335

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:1318-1
Rating: important

Topics%20covered

Topics Covered

security advisory code execution important kernel use after free live patch network scheduling

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