Use of Uninitialized Variable Affecting firefox-debuginfo package, versions <0:140.1.0-1.amzn2023.0.2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.35% (28th percentile)

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  • Snyk IDSNYK-AMZN2023-FIREFOXDEBUGINFO-12023744
  • published19 Aug 2025
  • disclosed22 Jul 2025

Introduced: 22 Jul 2025

CVE-2025-8027  (opens in a new tab)
CWE-457  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 firefox-debuginfo to version 0:140.1.0-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2025-1148.

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.

On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.

CVSS Base Scores

version 3.1