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JLSEC-2025-94 Medium 4.7

In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data...

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JLSEC Published
Modified
Severity
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Packages
GnuPG_jll < 2.4.8+0
Upstream
CVE-2025-30258

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."

References