Use After Free Affecting kernel-debug-modules package, versions <0:4.18.0-477.10.1.el8_8
Threat Intelligence
EPSS
0.07% (33rd
percentile)
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGMODULES-5542313
- published 24 Oct 2022
- disclosed 23 Sep 2022
Introduced: 23 Sep 2022
CVE-2022-41218 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug-modules to version 0:4.18.0-477.10.1.el8_8 or higher.
This issue was patched in RHSA-2023:2951.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules package and not the kernel-debug-modules package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release.
References
- https://access.redhat.com/security/cve/CVE-2022-41218
- https://lore.kernel.org/all/20220908132754.30532-1-tiwai@suse.de/
- http://www.openwall.com/lists/oss-security/2022/09/23/4
- http://www.openwall.com/lists/oss-security/2022/09/24/1
- http://www.openwall.com/lists/oss-security/2022/09/24/2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fd3d91ab1c6ab0628fe642dd570b56302c30a792
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/dvb-core/dmxdev.c
- https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://lore.kernel.org/all/20220908132754.30532-1-tiwai%40suse.de/
- https://www.debian.org/security/2023/dsa-5324
CVSS Scores
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