linux: A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege esc...
CVE-2023-3389 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-3389, released June 28, 2023. It is not reported as exploited. Patch Radar priority: High.
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.0.2-1 | DEBIAN-CVE-2023-3389 | Jun 28, 2023 |
| linux · Debian 13.5 (trixie) | 6.0.2-1 | DEBIAN-CVE-2023-3389 | Jun 28, 2023 |
| linux · Debian 14 | 6.0.2-1 | DEBIAN-CVE-2023-3389 | Jun 28, 2023 |
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