Use After Free Affecting kernel-rt-modules-extra package, versions <0:5.14.0-70.30.1.rt21.102.el9_0
Threat Intelligence
EPSS
0.04% (6th
percentile)
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Test your applications- Snyk ID SNYK-ALMALINUX9-KERNELRTMODULESEXTRA-5617706
- published 28 May 2023
- disclosed 2 Nov 2022
Introduced: 2 Nov 2022
CVE-2022-2585 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9 kernel-rt-modules-extra to version 0:5.14.0-70.30.1.rt21.102.el9_0 or higher.
This issue was patched in ALSA-2022:7319.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
It was discovered that when exec'ing from a non-leader thread, armed POSIX CPU timers would be left on a list but freed, leading to a use-after-free.
References
- https://errata.almalinux.org/9/ALSA-2022-7318.html
- https://errata.almalinux.org/9/ALSA-2022-7319.html
- https://access.redhat.com/security/cve/CVE-2022-2585
- https://access.redhat.com/errata/RHSA-2022:7318
- https://access.redhat.com/errata/RHSA-2022:7319
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2585
- https://lore.kernel.org/lkml/20220809170751.164716-1-cascardo@canonical.com/T/#u
- https://ubuntu.com/security/notices/USN-5564-1
- https://ubuntu.com/security/notices/USN-5565-1
- https://ubuntu.com/security/notices/USN-5566-1
- https://ubuntu.com/security/notices/USN-5567-1
- https://www.openwall.com/lists/oss-security/2022/08/09/7
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