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Microsoft Security Response CenterCVE-2025-68972

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.

Mariner

Read the vendor bulletin Get alerts for cbl2 gnupg2 2.4.0-3 on CBL Mariner
5.9CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • cbl2 gnupg2 2.4.0-3 on CBL Mariner 2.0
  • azl3 gnupg2 2.4.7-1 on Azure Linux 3.0
  • cbl2 gnupg2 2.4.0-2 on CBL Mariner 2.0
  • cbl2 gnupg2 2.4.0-3
  • cbl2 gnupg2 2.4.0-3 on CBL-Mariner 2.0

Versions the vendor lists as fixed

  • 2.4.9-1
Next step

What the vendor recommends

CBL-Mariner Releases Release Notes

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2025-68972View CVSS, KEV, EPSS, and threat context
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