Moderate CentOS openssl Security Update

Metadata

medium
unknown
openssl-1.0.1e-30.el6.9.i686.rpm, openssl-1.0.1e-30.el6.9.src.rpm, openssl-1.0.1e-30.el6.9.x86_64.rpm, openssl-1.0.1e-42.el7.6.src.rpm, openssl-1.0.1e-42.el7.6.x86_64.rpm, openssl-devel-1.0.1e-30.el6.9.i686.rpm, openssl-devel-1.0.1e-30.el6.9.x86_64.rpm, openssl-devel-1.0.1e-42.el7.6.i686.rpm, openssl-devel-1.0.1e-42.el7.6.x86_64.rpm, openssl-libs-1.0.1e-42.el7.6.i686.rpm, openssl-libs-1.0.1e-42.el7.6.x86_64.rpm, openssl-perl-1.0.1e-30.el6.9.i686.rpm, openssl-perl-1.0.1e-30.el6.9.x86_64.rpm, openssl-perl-1.0.1e-42.el7.6.x86_64.rpm, openssl-static-1.0.1e-30.el6.9.i686.rpm, openssl-static-1.0.1e-30.el6.9.x86_64.rpm, openssl-static-1.0.1e-42.el7.6.i686.rpm, openssl-static-1.0.1e-42.el7.6.x86_64.rpm
rhn.redhat.com, lists.centos.org, lists.centos.org
2015-06-04
2018-01-18 11:09
2017-07-27 19:09
2017-04-01 19:09
2017-01-05 20:13

Description


Updated openssl packages that fix one security issue are now available for
Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3)
and Transport Layer Security (TLS v1) protocols, as well as a
full-strength, general purpose cryptography library.

A flaw was found in the way the TLS protocol composes the Diffie-Hellman
(DH) key exchange. A man-in-the-middle attacker could use this flaw to
force the use of weak 512 bit export-grade keys during the key exchange,
allowing them do decrypt all traffic. (CVE-2015-4000)

Note: This update forces the TLS/SSL client implementation in OpenSSL to
reject DH key sizes below 768 bits, which prevents sessions to be
downgraded to export-grade keys. Future updates may raise this limit to
1024 bits.

All openssl users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. For the update to take
effect, all services linked to the OpenSSL library must be restarted, or
the system rebooted.
Please see https://www.redhat.com/footer/terms-of-use.html

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

Or, you can just let us figure it out for you! Appcanary continously monitor your installed packages, and tell you if any of them are vulnerable.

Sign up for monitoring

Affected package information

Release Package Patched in
6 openssl openssl-1.0.1e-30.el6.9.src.rpm
openssl openssl-1.0.1e-30.el6.9.x86_64.rpm
openssl openssl-1.0.1e-30.el6.9.i686.rpm
openssl-devel openssl-devel-1.0.1e-30.el6.9.i686.rpm
openssl-devel openssl-devel-1.0.1e-30.el6.9.x86_64.rpm
openssl-perl openssl-perl-1.0.1e-30.el6.9.x86_64.rpm
openssl-perl openssl-perl-1.0.1e-30.el6.9.i686.rpm
openssl-static openssl-static-1.0.1e-30.el6.9.i686.rpm
openssl-static openssl-static-1.0.1e-30.el6.9.x86_64.rpm
7 openssl openssl-1.0.1e-42.el7.6.src.rpm
openssl openssl-1.0.1e-42.el7.6.x86_64.rpm
openssl-devel openssl-devel-1.0.1e-42.el7.6.i686.rpm
openssl-devel openssl-devel-1.0.1e-42.el7.6.x86_64.rpm
openssl-libs openssl-libs-1.0.1e-42.el7.6.i686.rpm
openssl-libs openssl-libs-1.0.1e-42.el7.6.x86_64.rpm
openssl-perl openssl-perl-1.0.1e-42.el7.6.x86_64.rpm
openssl-static openssl-static-1.0.1e-42.el7.6.i686.rpm
openssl-static openssl-static-1.0.1e-42.el7.6.x86_64.rpm