RHSA-2016:0008: Moderate: openssl security update

Published Jan 7, 2016
·
Updated

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3)and Transport Layer Security (TLS v1) protocols, as well as afull-strength, general purpose cryptography library.A flaw was found in the way TLS 1.2 could use the MD5 hash function forsigning ServerKeyExchange and Client Authentication packets during a TLShandshake. A man-in-the-middle attacker able to force a TLS connection touse the MD5 hash function could use this flaw to conduct collision attacksto impersonate a TLS server or an authenticated TLS client. (CVE-2015-7575)All openssl users are advised to upgrade to these updated packages, whichcontain a backported patch to correct this issue. For the update to takeeffect, all services linked to the OpenSSL library must be restarted, orthe system rebooted.

Affected Software

22 affected componentsFixes available
redhat/openssl<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-debuginfo<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-debuginfo<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-devel<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-devel<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-libs<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-libs<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-perl<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-static<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-static<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl-debuginfo<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl-debuginfo<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl-devel<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl-devel<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl-perl<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl-static<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl-perl<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl-static<1.0.1e-42.el6_7.2
1.0.1e-42.el6_7.2
redhat/openssl<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2
redhat/openssl-perl<1.0.1e-51.el7_2.2
1.0.1e-51.el7_2.2

Remediation

Event History

Jan 7, 2016
Advisory Published
12:00 AM
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Frequently Asked Questions

1

What is the severity of RHSA-2016:0008?

The severity of RHSA-2016:0008 is classified as moderate.

2

How do I fix RHSA-2016:0008?

To fix RHSA-2016:0008, upgrade your OpenSSL packages to versions 1.0.1e-51.el7_2.2 or 1.0.1e-42.el6_7.2 as applicable.

3

What vulnerabilities are addressed in RHSA-2016:0008?

RHSA-2016:0008 addresses a flaw found in the way TLS 1.2 could use the MD5 hash function for signing.

4

Which OpenSSL packages are affected by RHSA-2016:0008?

Affected OpenSSL packages include openssl, openssl-devel, openssl-libs, openssl-debuginfo, and others based on the versions mentioned.

5

Is there a recommended version to prevent issues from RHSA-2016:0008?

Yes, the recommended version to prevent issues from RHSA-2016:0008 is OpenSSL 1.0.1e-51.el7_2.2 or 1.0.1e-42.el6_7.2.

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