Use After Free Affecting kernel-rt package, versions <0:4.18.0-553.rt7.342.el8_10
Threat Intelligence
EPSS
0.04% (6th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-CENTOS8-KERNELRT-5768781
- published 9 Jul 2023
- disclosed 14 Jan 2023
Introduced: 14 Jan 2023
CVE-2023-3567 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt to version 0:4.18.0-553.rt7.342.el8_10 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.
References
- https://access.redhat.com/security/cve/CVE-2023-3567
- http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://access.redhat.com/errata/RHSA-2024:2950
- https://bugzilla.redhat.com/show_bug.cgi?id=2221463
- https://www.spinics.net/lists/stable-commits/msg285184.html
CVSS Scores
version 3.1