Moderate CentOS gnutls Security Update


gnutls-2.8.5-19.el6_7.i686.rpm, gnutls-2.8.5-19.el6_7.src.rpm, gnutls-2.8.5-19.el6_7.x86_64.rpm, gnutls-3.3.8-14.el7_2.i686.rpm, gnutls-3.3.8-14.el7_2.src.rpm, gnutls-3.3.8-14.el7_2.x86_64.rpm, gnutls-c++-3.3.8-14.el7_2.i686.rpm, gnutls-c++-3.3.8-14.el7_2.x86_64.rpm, gnutls-dane-3.3.8-14.el7_2.i686.rpm, gnutls-dane-3.3.8-14.el7_2.x86_64.rpm, gnutls-devel-2.8.5-19.el6_7.i686.rpm, gnutls-devel-2.8.5-19.el6_7.x86_64.rpm, gnutls-devel-3.3.8-14.el7_2.i686.rpm, gnutls-devel-3.3.8-14.el7_2.x86_64.rpm, gnutls-guile-2.8.5-19.el6_7.i686.rpm, gnutls-guile-2.8.5-19.el6_7.x86_64.rpm, gnutls-utils-2.8.5-19.el6_7.i686.rpm, gnutls-utils-2.8.5-19.el6_7.x86_64.rpm, gnutls-utils-3.3.8-14.el7_2.x86_64.rpm,,
2018-01-18 11:11
2017-07-27 19:10
2017-04-01 19:09
2017-01-05 20:13


Updated gnutls 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.

The GnuTLS library provides support for cryptographic algorithms and for
protocols such as Transport Layer Security (TLS).

A flaw was found in the way TLS 1.2 could use the MD5 hash function for
signing ServerKeyExchange and Client Authentication packets during a TLS
handshake. A man-in-the-middle attacker able to force a TLS connection to
use the MD5 hash function could use this flaw to conduct collision attacks
to impersonate a TLS server or an authenticated TLS client. (CVE-2015-7575)

All gnutls 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 applications linked to the GnuTLS library must be restarted.
Please see

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.

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Affected package information

Release Package Patched in
6 gnutls gnutls-2.8.5-19.el6_7.x86_64.rpm
gnutls gnutls-2.8.5-19.el6_7.src.rpm
gnutls gnutls-2.8.5-19.el6_7.i686.rpm
gnutls-devel gnutls-devel-2.8.5-19.el6_7.i686.rpm
gnutls-devel gnutls-devel-2.8.5-19.el6_7.x86_64.rpm
gnutls-guile gnutls-guile-2.8.5-19.el6_7.i686.rpm
gnutls-guile gnutls-guile-2.8.5-19.el6_7.x86_64.rpm
gnutls-utils gnutls-utils-2.8.5-19.el6_7.i686.rpm
gnutls-utils gnutls-utils-2.8.5-19.el6_7.x86_64.rpm
7 gnutls gnutls-3.3.8-14.el7_2.x86_64.rpm
gnutls gnutls-3.3.8-14.el7_2.src.rpm
gnutls gnutls-3.3.8-14.el7_2.i686.rpm
gnutls-c++ gnutls-c++-3.3.8-14.el7_2.i686.rpm
gnutls-c++ gnutls-c++-3.3.8-14.el7_2.x86_64.rpm
gnutls-dane gnutls-dane-3.3.8-14.el7_2.x86_64.rpm
gnutls-dane gnutls-dane-3.3.8-14.el7_2.i686.rpm
gnutls-devel gnutls-devel-3.3.8-14.el7_2.x86_64.rpm
gnutls-devel gnutls-devel-3.3.8-14.el7_2.i686.rpm
gnutls-utils gnutls-utils-3.3.8-14.el7_2.x86_64.rpm