Buffer Overflow Affecting kernel-rt-devel package, versions <0:4.18.0-425.19.2.rt7.230.el8_7
Threat Intelligence
EPSS
0.04% (6th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEVEL-3167488
- published 12 Dec 2022
- disclosed 9 Dec 2022
How to fix?
Upgrade Centos:8 kernel-rt-devel to version 0:4.18.0-425.19.2.rt7.230.el8_7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-devel package and not the kernel-rt-devel package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their privileges on the system.
References
- https://access.redhat.com/security/cve/CVE-2022-4378
- http://packetstormsecurity.com/files/171289/Kernel-Live-Patch-Security-Notice-LNS-0092-1.html
- https://bugzilla.redhat.com/show_bug.cgi?id=2152548
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-6.0/proc-avoid-integer-type-confusion-in-get_proc_long.patch
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-6.0/proc-proc_skip_spaces-shouldn-t-think-it-is-working-on-c-strings.patch
- https://seclists.org/oss-sec/2022/q4/178
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