Race Condition Affecting kernel-tools-devel package, versions <0:4.14.281-212.502.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELTOOLSDEVEL-2862947
  • published8 Jun 2022
  • disclosed1 Sept 2022

Introduced: 8 Jun 2022

CVE-2022-1729  (opens in a new tab)
CWE-366  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-tools-devel to version 0:4.14.281-212.502.amzn2 or higher.
This issue was patched in ALAS2-2022-1798.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-devel package and not the kernel-tools-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc.

CVSS Scores

version 3.1