Out-of-bounds Write Affecting gnupg package, versions <2.4.9-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-ALPINE321-GNUPG-14845619
  • published2 Jan 2026
  • disclosed28 Dec 2025

Introduced: 28 Dec 2025

CVE-2025-68973  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 gnupg to version 2.4.9-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnupg package and not the gnupg package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)

CVSS Base Scores

version 3.1