GLSA 201402-24: GnuPG, Libgcrypt: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	GnuPG, Libgcrypt: Multiple vulnerabilities
Date:	02/21/2014
Bugs:	#449546, #478184, #484836, #487230, #494658
ID:	201402-24

Synopsis

Multiple vulnerabilities have been discovered in GnuPG and Libgcrypt, which may result in execution of arbitrary code, Denial of Service, or the disclosure of private keys.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-crypt/gnupg	< 2.0.22	>= 2.0.22	All supported architectures
dev-libs/libgcrypt	< 1.5.3	>= 1.5.3	All supported architectures

Description

Multiple vulnerabilities have been discovered in GnuPG and Libgcrypt. Please review the CVE identifiers referenced below for details.

Impact

An unauthenticated remote attacker may be able to execute arbitrary code with the privileges of the user running GnuPG, cause a Denial of Service condition, or bypass security restrictions. Additionally, a side-channel attack may allow a local attacker to recover a private key, please review “Flush+Reload: a High Resolution, Low Noise, L3 Cache Side-Channel Attack” in the References section for further details.

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-2.0.22"

All GnuPG 1.4 users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=app-crypt/gnupg-1.4.16"

All Libgcrypt users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/libgcrypt-1.5.3"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201402-24.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.