Memory Leak Affecting mod_session package, versions <0:2.4.64-1.amzn2.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
4.41% (91st percentile)

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  • Snyk IDSNYK-AMZN2-MODSESSION-11474519
  • published5 Aug 2025
  • disclosed10 Jul 2025

Introduced: 10 Jul 2025

CVE-2025-53020  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 mod_session to version 0:2.4.64-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2025-2958.

NVD Description

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

Late Release of Memory after Effective Lifetime vulnerability in Apache HTTP Server.

This issue affects Apache HTTP Server: from 2.4.17 up to 2.4.63.

Users are recommended to upgrade to version 2.4.64, which fixes the issue.

CVSS Base Scores

version 3.1