Race Condition Affecting kernel-rt-debug-modules-extra package, versions <0:4.18.0-305.rt7.72.el8
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGMODULESEXTRA-2104263
- published 26 Jul 2021
- disclosed 13 Sep 2020
Introduced: 13 Sep 2020
CVE-2020-25285 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-debug-modules-extra to version 0:4.18.0-305.rt7.72.el8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-extra package and not the kernel-rt-debug-modules-extra package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812.
References
- https://security.netapp.com/advisory/ntap-20201009-0002/
- https://access.redhat.com/security/cve/CVE-2020-25285
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.8
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17743798d81238ab13050e8e2833699b54e15467
- https://twitter.com/grsecurity/status/1303749848898904067
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
- https://access.redhat.com/errata/RHSA-2021:1739
- https://usn.ubuntu.com/4576-1/
- https://usn.ubuntu.com/4579-1/