Alerts This Week
Warning Icon 1 666
Alerts This Week
Warning Icon 1 666

Gentoo: GLSA-202310-02 Normal: libgpgme Information Leak

gentoo
Calendar Grey October 10, 2016
Dist Gentoo Esm H88
Identify persistent security flaws in libgcrypt linked to entropy; immediate patch advised.
Multiple vulnerabilities have been fixed in libgcrypt,the worst of which results in predictable output from the random number generator.

Summary

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

Topics%20covered

Topics Covered

security advisory random number generator normal libgcrypt sensitive data exposure

Resolution

All libgcrypt users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libgcrypt-1.7.3"

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 [ 3 ] CVE-2015-7511 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7511 [ 4 ] CVE-2016-6313 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6313 [ 5 ] Factoring RSA Keys With TLS Perfect Forward Secrecy https://www.redhat.com/en/blog/factoring-rsa-keys-tls-perfect-forward-secrecy

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201610-04
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.

Severity: Normal
Title: libgcrypt: Multiple vulnerabilities
Date: October 10, 2016
Bugs: #541564, #559942, #574268, #591534
ID: 201610-04

Topics%20covered

Topics Covered

security advisory random number generator normal libgcrypt sensitive data exposure

Synopsis

Multiple vulnerabilities have been fixed in libgcrypt,the worst of which results in predictable output from the random number generator.

Background

libgcrypt is a general purpose cryptographic library derived out of GnuPG.

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libgcrypt < 1.7.3 >= 1.7.3

Impact

===== Side-channel attacks can leak private key information. A separate critical bug allows an attacker who obtains 4640 bits from the RNG to trivially predict the next 160 bits of output.

Workaround

There is no known workaround at this time.

Related News

Your message here