GnuPG: Denial of service

Background

The GNU Privacy Guard, GnuPG, is a free replacement for the PGP suite of cryptographic software.

Description

GnuPG does not properly handle a specially crated compressed packet resulting in an infinite loop.

Impact

A context-dependent attacker can cause a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All GnuPG 2.0 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-crypt/gnupg-2.0.24"

All GnuPG 1.4 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-crypt/gnupg-1.4.17"