GLSA 201601-05: OpenSSL: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	OpenSSL: Multiple vulnerabilities
Date:	01/29/2016
Bugs:	#572854
ID:	201601-05

Synopsis

Multiple vulnerabilities have been found in OpenSSL, allowing remote attackers to disclose sensitive information and complete weak handshakes.

Background

OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general purpose cryptography library.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/openssl	< 1.0.2f	>= 1.0.2f	All supported architectures

Description

Multiple vulnerabilities have been discovered in OpenSSL. Please review the upstream advisory and CVE identifiers referenced below for details. Note that the list includes CVE identifiers for an older OpenSSL Security Advisory (3 Dec 2015) for which we have not issued a GLSA before.

Impact

A remote attacker could disclose a server’s private DH exponent, or complete SSLv2 handshakes using ciphers that have been disabled on the server.

Workaround

There is no known workaround at this time.

Resolution

All OpenSSL users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.0.2f"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201601-05.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.