Improper Verification of Cryptographic Signature The advisory has been revoked - it doesn't affect any version of package gnupg2  (opens in a new tab)


Threat Intelligence

EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-UBUNTU2404-GNUPG2-14849569
  • published17 Jan 2026
  • disclosed27 Dec 2025

Introduced: 27 Dec 2025

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

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:24.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnupg2 package and not the gnupg2 package as distributed by Ubuntu.

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.