CVE-2022-29582 Information

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.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://www.openwall.com/lists/oss-security/2022/04/22/3 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e677edbcabee849bfdd43f1602bccbecf736a646 https://github.com/torvalds/linux/commit/e677edbcabee849bfdd43f1602bccbecf736a646 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3 http://www.openwall.com/lists/oss-security/2022/04/22/4 https://www.debian.org/security/2022/dsa-5127

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.0