Vulnerability · Published Apr 22, 2022 · Assigned by mitre
CVE-2022-29582
High 7.0
In plain English
A high-severity security flaw in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.0High
Exploit odds (30 days)0.8%top 44.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.17.3-1 | DEBIAN-CVE-2022-29582 |
| Debian:13 | linux | 5.17.3-1 | DEBIAN-CVE-2022-29582 |
| Debian:14 | linux | 5.17.3-1 | DEBIAN-CVE-2022-29582 |
Affected products (as reported)
References
- https://www.openwall.com/lists/oss-security/2022/04/22/3
- https://github.com/torvalds/linux/commit/e677edbcabee849bfdd43f1602bccbecf736a646
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e677edbcabee849bfdd43f1602bccbecf736a646
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3
- [oss-security] 20220422 Re: Linux: UaF due to concurrency issue in io_uring timeouts mailing-list
- DSA-5127 vendor-advisory
- [oss-security] 20220808 Re: Linux: UaF due to concurrency issue in io_uring timeouts mailing-list
- https://ruia-ruia.github.io/2022/08/05/CVE-2022-29582-io-uring/
- https://github.com/Ruia-ruia/CVE-2022-29582-Exploit
- [oss-security] 20240424 CVE-2024-0582 - Linux kernel use-after-free vulnerability in io_uring, writeup and exploit strategy mailing-list