Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS8-KERNELHEADERS-1970679
- published28 Jul 2021
- disclosed2 Oct 2020
Introduced: 2 Oct 2020
CVE-2021-37159 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by Centos.
hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.
References
- https://security.netapp.com/advisory/ntap-20210819-0003/
- https://access.redhat.com/security/cve/CVE-2021-37159
- https://www.spinics.net/lists/linux-usb/msg202228.html
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- https://access.redhat.com/errata/RHSA-2022:1988
- https://bugzilla.suse.com/show_bug.cgi?id=1188601
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6ecfb39ba9d7316057cea823b196b734f6b18ca
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dcb713d53e2eadf42b878c12a471e74dc6ed3145
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://www.oracle.com/security-alerts/cpujul2022.html