Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP4)
Announcement ID: | SUSE-SU-2022:3123-1 |
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Rating: | important |
References: | |
Cross-References: | |
CVSS scores: |
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Affected Products: |
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An update that solves three vulnerabilities can now be installed.
Description:
This update for the Linux Kernel 5.14.21-150400_24_16 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-2021-39698: Fixed possible memory corruption in aio_poll_complete_work of aio.c, that could have led to local escalation of privilege with no additional execution privileges needed (bsc#1196959). - 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 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 Live Patching 15-SP4
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2022-3123=1
Package List:
-
SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
- kernel-livepatch-5_14_21-150400_24_18-default-debuginfo-2-150400.2.1
- kernel-livepatch-SLE15-SP4_Update_2-debugsource-2-150400.2.1
- kernel-livepatch-5_14_21-150400_24_18-default-2-150400.2.1
References:
- https://www.suse.com/security/cve/CVE-2020-36516.html
- https://www.suse.com/security/cve/CVE-2021-39698.html
- https://www.suse.com/security/cve/CVE-2022-36946.html
- https://bugzilla.suse.com/show_bug.cgi?id=1196867
- https://bugzilla.suse.com/show_bug.cgi?id=1196959
- https://bugzilla.suse.com/show_bug.cgi?id=1201941