GnuPG: Multiple vulnerabilities

Background

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

Description

Multiple vulnerabilities have been discovered in GnuPG and libgcrypt, please review the CVE identifiers referenced below for details.

Impact

A local attacker could possibly cause a Denial of Service condition. Side-channel attacks could be leveraged to obtain key material.

Workaround

There is no known workaround at this time.

Resolution

All GnuPG 2 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-crypt/gnupg-2.0.26-r3"

All GnuPG 1 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-crypt/gnupg-1.4.19"

All libgcrypt users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-libs/libgcrypt-1.6.3-r4"