Divide By Zero Affecting python-perf package, versions <0:4.14.256-197.484.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.1% (29th percentile)

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  • Snyk IDSNYK-AMZN2-PYTHONPERF-10265483
  • published30 May 2025
  • disclosed22 May 2024

Introduced: 22 May 2024

CVE-2021-47495  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 python-perf to version 0:4.14.256-197.484.amzn2 or higher.
This issue was patched in ALAS2-2025-2752.

NVD Description

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

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

usbnet: sanity check for maxpacket

maxpacket of 0 makes no sense and oopses as we need to divide by it. Give up.

V2: fixed typo in log and stylistic issues

CVSS Base Scores

version 3.1