CVE-2022-29582 Use after free in n/a
A local attacker can exploit a race condition in Linux kernel io_uring timeouts to trigger a use-after-free, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-29582?
CVE-2022-29582 is a high-severity use after free vulnerability in Debian Debian Linux, published on 22 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.
Weakness: CWE-362
Which versions are affected by CVE-2022-29582?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2022-29582?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2022-29582 being exploited?
There is no known exploitation of CVE-2022-29582 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as A-231494876, ASB-A-231494876, AZL-9582, DEBIAN-CVE-2022-29582, GHSA-52p4-cqpv-xm5j, UBUNTU-CVE-2022-29582.