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Gentoo: GLSA-201612-16 Normal: OpenSSL Side-Channel Risk Threat

gentoo
Calendar Grey December 7, 2016
Dist Gentoo Esm H88
Enhance OpenSSL on Gentoo to address various vulnerabilities, particularly critical side-channel threats.
Multiple vulnerabilities have been found in OpenSSL, the worst of which allows attackers to conduct a time based side-channel attack.

Summary

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.

Topics%20covered

Topics Covered

security advisory denial of service OpenSSL Gentoo Linux normal severity side-channel attack

Resolution

All OpenSSL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.0.2j"

References

[ 1 ] CVE-2016-2105 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2105 [ 2 ] CVE-2016-2106 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2106 [ 3 ] CVE-2016-2107 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2107 [ 4 ] CVE-2016-2108 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2108 [ 5 ] CVE-2016-2109 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2109 [ 6 ] CVE-2016-2176 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2176 [ 7 ] CVE-2016-2177 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2177 [ 8 ] CVE-2016-2178 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2178 [ 9 ] CVE-2016-2180 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2180 [ 10 ] CVE-2016-2183 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2183 [ 11 ] CVE-2016-6304 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6304 [ 12 ] CVE-2016-6305 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6305 [ 13 ] CVE-2016-6306 http://nvd.nist.gov/nvd.cfm?cvena...

Read the Full Advisory

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201612-16
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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: OpenSSL: Multiple vulnerabilities
Date: December 07, 2016
Bugs: #581234, #585142, #585276, #591454, #592068, #592074,
ID: 201612-16

Topics%20covered

Topics Covered

security advisory denial of service OpenSSL Gentoo Linux normal severity side-channel attack

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.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/openssl < 1.0.2j >= 1.0.2j

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.

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