CVE-2025-38466 Affecting python3-perf-debuginfo package, versions <1:6.1.147-172.266.amzn2023


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.03% (9th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2023-PYTHON3PERFDEBUGINFO-12762639
  • published16 Sept 2025
  • disclosed25 Jul 2025

Introduced: 25 Jul 2025

CVE-2025-38466  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 python3-perf-debuginfo to version 1:6.1.147-172.266.amzn2023 or higher.
This issue was patched in ALAS2023-2025-1144.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-perf-debuginfo package and not the python3-perf-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

perf: Revert to requiring CAP_SYS_ADMIN for uprobes

Jann reports that uprobes can be used destructively when used in the middle of an instruction. The kernel only verifies there is a valid instruction at the requested offset, but due to variable instruction length cannot determine if this is an instruction as seen by the intended execution stream.

Additionally, Mark Rutland notes that on architectures that mix data in the text segment (like arm64), a similar things can be done if the data word is 'mistaken' for an instruction.

As such, require CAP_SYS_ADMIN for uprobes.

CVSS Base Scores

version 3.1