GLSA 201606-04: GnuPG: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	GnuPG: Multiple vulnerabilities
Date:	06/05/2016
Bugs:	#534110, #541564, #541568
ID:	201606-04

Synopsis

Multiple vulnerabilities have been found in GnuPG and libgcrypt, the worst of which may allow a local attacker to obtain confidential key information.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-crypt/gnupg	< 2.0.26-r3	>= 2.0.26-r3	All supported architectures
dev-libs/libgcrypt	< 1.6.3-r4	>= 1.6.3-r4	All supported architectures

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"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201606-04.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.