GLSA 201612-16: OpenSSL: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	OpenSSL: Multiple vulnerabilities
Date:	12/07/2016
Bugs:	#581234, #585142, #585276, #591454, #592068, #592074, #592082, #594500, #595186
ID:	201612-16

Synopsis

Multiple vulnerabilities have been found in OpenSSL, the worst of which allows attackers to conduct a time based side-channel attack.

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	< 1.0.2j	>= 1.0.2j	All supported architectures

Description

Multiple vulnerabilities have been discovered in OpenSSL. Please review the CVE identifiers and the International Association for Cryptologic Research’s (IACR) paper, “Make Sure DSA Signing Exponentiations Really are Constant-Time” for further details.

Impact

Remote attackers could cause a Denial of Service condition or have other unspecified impacts. Additionally, a time based side-channel attack may allow a local attacker to recover a private DSA key.

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-1.0.2j"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201612-16.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.