Use After Free Affecting kernel-debug-core package, versions <0:4.18.0-477.43.1.el8_8
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGCORE-6215713
- published 31 Jan 2024
- disclosed 14 Jan 2023
Introduced: 14 Jan 2023
CVE-2023-3567 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug-core to version 0:4.18.0-477.43.1.el8_8 or higher.
This issue was patched in RHSA-2024:0575.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-core package and not the kernel-debug-core package as distributed by RHEL.
See How to fix? for RHEL: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-2024:0575
- https://bugzilla.redhat.com/show_bug.cgi?id=2221463
- https://www.spinics.net/lists/stable-commits/msg285184.html