Use After Free Affecting firefox-debuginfo package, versions <0:140.3.0-1.amzn2023.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-AMZN2023-FIREFOXDEBUGINFO-13167157
  • published1 Oct 2025
  • disclosed16 Sept 2025

Introduced: 16 Sep 2025

CVE-2025-10527  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 firefox-debuginfo to version 0:140.3.0-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2025-1203.

NVD Description

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

Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.

CVSS Base Scores

version 3.1