Description (CNA)
A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root. We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ .
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux Kernel | affected 3.8.0 before 4.14.308; affected 4.15.0 before 4.19.276; affected 4.20.0 before 5.4.235; affected 5.5.0 before 5.10.173; affected 5.11.0 before 5.15.100; affected 5.16.0 before 6.1.18; affected 6.2.0 before 6.2.5; unaffected 6.3.0; unaffected 8c710f75256bb3cf05ac7b1672c82b92c43f3d28 |
CWE
CWE-416
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8c710f75256bb3cf05ac7b1672c82b92c43f3d28
- https://kernel.dance/#8c710f75256bb3cf05ac7b1672c82b92c43f3d28
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://security.netapp.com/advisory/ntap-20230601-0001/
ADP enrichment
No English description supplied.
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8c710f75256bb3cf05ac7b1672c82b92c43f3d28
- https://kernel.dance/#8c710f75256bb3cf05ac7b1672c82b92c43f3d28
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://security.netapp.com/advisory/ntap-20230601-0001/
No English description supplied.
No references supplied.