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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201402-24 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: GnuPG, Libgcrypt: Multiple vulnerabilities Date: February 21, 2014 Bugs: #449546, #478184, #484836, #487230, #494658 ID: 201402-24
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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 ------------------------------------------------------------------- 1 app-crypt/gnupg < 2.0.22 *>= 1.4.16 >= 2.0.22 2 dev-libs/libgcrypt < 1.5.3 >= 1.5.3 ------------------------------------------------------------------- 2 affected packages
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 ==========
[ 1 ] CVE-2012-6085 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6085 [ 2 ] CVE-2013-4242 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4242 [ 3 ] CVE-2013-4351 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4351 [ 4 ] CVE-2013-4402 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4402 [ 5 ] Flush+Reload: a High Resolution, Low Noise, L3 Cache Side-Channel Attack http://eprint.iacr.org/2013/448
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.
License =======
Copyright 2014 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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