Gentoo: 201606-04 Moderate: GnuPG Key Exposure and Threats
gentoo
June 5, 2016
Multiple vulnerabilities have been found in GnuPG and libgcrypt, the worst of which may allow a local attacker to obtain confidential key information
Summary
Multiple vulnerabilities have been discovered in GnuPG and libgcrypt, please review the CVE identifiers referenced below for details.
Topics Covered
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"
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
[ 1 ] CVE-2014-3591 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-3591 [ 2 ] CVE-2015-0837 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-0837
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201606-04
style>.gentoo_availability{display:block;}
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.
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Severity: Normal
Title: GnuPG: Multiple vulnerabilities
Date: June 05, 2016
Bugs: #534110, #541564, #541568
ID: 201606-04
Topics Covered
Background
The GNU Privacy Guard, GnuPG, is a free replacement for the PGP suite
of cryptographic software.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-crypt/gnupg < 2.0.26-r3 *>= 1.4.19
>= 2.0.26-r3
2 dev-libs/libgcrypt < 1.6.3-r4 >= 1.6.3-r4
-------------------------------------------------------------------
2 affected packages
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.
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