In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."
History

Thu, 20 Mar 2025 14:00:00 +0000

Type Values Removed Values Added
Title gnupg: verification DoS due to a malicious subkey in the keyring
References
Metrics threat_severity

None

threat_severity

Low


Wed, 19 Mar 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 19 Mar 2025 19:30:00 +0000

Type Values Removed Values Added
Description In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."
Weaknesses CWE-754
References
Metrics cvssV3_1

{'score': 2.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-03-19T20:49:22.417Z

Reserved: 2025-03-19T00:00:00.000Z

Link: CVE-2025-30258

cve-icon Vulnrichment

Updated: 2025-03-19T20:48:51.269Z

cve-icon NVD

Status : Received

Published: 2025-03-19T20:15:20.140

Modified: 2025-03-19T20:15:20.140

Link: CVE-2025-30258

cve-icon Redhat

Severity : Low

Publid Date: 2025-03-19T00:00:00Z

Links: CVE-2025-30258 - Bugzilla