Improper Verification of Cryptographic Signature Affecting gnupg2 package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-DEBIAN12-GNUPG2-14723296
  • published29 Dec 2025
  • disclosed27 Dec 2025

Introduced: 27 Dec 2025

CVE-2025-68972  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 gnupg2.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnupg2 package and not the gnupg2 package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.

CVSS Base Scores

version 3.1