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[USN-7946-2] GnuPG vulnerability

Posted on 08 January 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7946-2
January 08, 2026

gnupg vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

GnuPG could be made to crash or run programs if it received
specially crafted network traffic.

Software Description:
- gnupg: GNU privacy guard - a free PGP replacement

Details:

USN-7946-1 fixed vulnerabilities in GnuPG 2.x.
This update provides the corresponding updates for GnuPG 1.x.

Original advisory details:
It was discovered that GnuPG incorrectly handled crafted input.
A remote attacker could possibly use this issue to crash the program,
or execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS
gnupg 1.4.20-1ubuntu3.3+esm3
Available with Ubuntu Pro
gpgv 1.4.20-1ubuntu3.3+esm3
Available with Ubuntu Pro

Ubuntu 14.04 LTS
gnupg 1.4.16-1ubuntu2.6+esm2
Available with Ubuntu Pro
gpgv 1.4.16-1ubuntu2.6+esm2
Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-7946-2
https://ubuntu.com/security/notices/USN-7946-1
CVE-2025-68973

--===============6345281598374093971==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

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