Tracker / CVE-2023-1829
CVE-2023-1829
High 7.8
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 products and versions
| linux | linux_kernel · … → 4.14.308 |
|---|---|
| linux | linux_kernel · 4.15 → 4.19.276 |
| linux | linux_kernel · 4.20 → 5.4.235 |
| linux | linux_kernel · 5.11 → 5.15.100 |
| linux | linux_kernel · 5.16 → 6.1.18 |
| linux | linux_kernel · 5.5 → 5.10.173 |
| linux | linux_kernel · 6.2 → 6.2.5 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.