CVE-2022-29582

low-risk

Published 2022-04-22

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.

Do I need to act?

0.18% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.0/10 High

LOCAL / HIGH complexity

Affected Products (2)

Linux Kernel

Debian Linux

Affected Vendors

Debian Linux

References (20)

Mailing List http://www.openwall.com/lists/oss-security/2022/04/22/4

Mailing List http://www.openwall.com/lists/oss-security/2022/08/08/3

http://www.openwall.com/lists/oss-security/2024/04/24/3

Mailing List https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3

Mailing List https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e677e...

Third Party Advisory https://github.com/Ruia-ruia/CVE-2022-29582-Exploit

Patch https://github.com/torvalds/linux/commit/e677edbcabee849bfdd43f1602bccbecf736a64...

Exploit https://ruia-ruia.github.io/2022/08/05/CVE-2022-29582-io-uring/

Third Party Advisory https://www.debian.org/security/2022/dsa-5127

Mailing List https://www.openwall.com/lists/oss-security/2022/04/22/3