Use After Free Affecting kernel-debug package, versions <0:4.18.0-372.87.1.el8_6
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUG-6200316
- published 26 Jan 2024
- disclosed 10 Mar 2023
Introduced: 10 Mar 2023
CVE-2023-1855 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug to version 0:4.18.0-372.87.1.el8_6 or higher.
This issue was patched in RHSA-2024:0412.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug 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 xgene_hwmon_remove in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux Kernel Driver (xgene-hwmon). This flaw could allow a local attacker to crash the system due to a race problem. This vulnerability could even lead to a kernel information leak problem.
References
- https://access.redhat.com/security/cve/CVE-2023-1855
- https://lore.kernel.org/all/20230318122758.2140868-1-linux@roeck-us.net/
- https://github.com/torvalds/linux/commit/cb090e64cf25602b9adaf32d5dfc9c8bec493cd1
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://lore.kernel.org/all/20230318122758.2140868-1-linux%40roeck-us.net/