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SUSE: 2022:3061-1 Important: Kernel Denial and Off-Path Fixes

suse
Calendar Grey September 6, 2022
Dist Suse Esm H88
A major SUSE release targeting crucial vulnerabilities within the Linux Kernel, emphasizing improvements in live patching capabilities.
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-150100_197_111 fixes several issues. The following security issues were fixed: - CVE-2020-36516: Fixed an off-path attack via mixed IPID assignment method with the hash-based IPID assignment policy to inject data into a victim's TCP session or terminate that session (bsc#1196867). - CVE-2022-36946: Fixed a remote denial of service attack inside nfqnl_mangle in net/netfilter/nfnetlink_queue.c, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative length (bsc#1201941). 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:

References

#1196867 #1201941

Cross- CVE-2020-36516 CVE-2022-36946

CVSS scores:

CVE-2020-36516 (NVD) : 5.9 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

CVE-2020-36516 (SUSE): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CVE-2022-36946 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2022-36946 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

SUSE Linux Enterprise High Performance Computing 15

SUSE Linux Enterprise High Performance Computing 15-SP1

SUSE Linux Enterprise High Performance Computing 15-SP2

SUSE Linux Enterprise High Performance Computing 15-SP3

SUSE Linux Enterprise Live Patching 12-SP4

SUSE Linux Enterprise Live Patching 12-SP5

SUSE Linux Enterprise Micro 5.1

SUSE Linux Enterprise Module for Live Patching 15

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:3061-1
Rating: important

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