Race Condition Affecting kernel-tools package, versions <0:5.15.43-20.123.amzn2022


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.77% (51st percentile)

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  • Snyk IDSNYK-AMZN2022-KERNELTOOLS-2999498
  • published29 Aug 2022
  • disclosed22 Apr 2022

Introduced: 22 Apr 2022

CVE-2022-29582  (opens in a new tab)
CWE-366  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2022 kernel-tools to version 0:5.15.43-20.123.amzn2022 or higher.
This issue was patched in ALAS2022-2022-083.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2022 relevant fixed versions and status.

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 Base Scores

version 3.1