Ubuntu 18.04 LTS: GnuPG Keyring Corruption Issue USN-7412-3 CVE-2025-30258
ubuntu
December 9, 2025
GnuPG could be made to corrupt a keyring.
Summary
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: GnuPG could be made to corrupt a keyring. Software Description: - gnupg2: GNU privacy guard - a free PGP replacement Details: USN-7412-1 fixed a vulnerability in GnuPG. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Original advisory details: It was discovered that GnuPG incorrectly handled importing keys with certain crafted subkey data. If a user or automated system were tricked into importing a specially crafted key, a remote attacker may prevent users from importing other keys in the future.
Topics Covered
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS gnupg 2.2.4-1ubuntu1.6+esm1 Available with Ubuntu Pro gnupg2 2.2.4-1ubuntu1.6+esm1 Available with Ubuntu Pro gpg 2.2.4-1ubuntu1.6+esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS gnupg2 2.1.11-6ubuntu2.1+esm2 Available with Ubuntu Pro gpgv2 2.1.11-6ubuntu2.1+esm2 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-7412-3
https://ubuntu.com/security/notices/USN-7412-2
https://ubuntu.com/security/notices/USN-7412-1
CVE-2025-30258
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Ubuntu Security Notice USN-7412-3
Topics Covered
Package Information
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