RHEL 6 / 7 : libgcrypt (RHSA-2016:2674)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

An update for libgcrypt is now available for Red Hat Enterprise Linux
6 and Red Hat Enterprise Linux 7.

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

The libgcrypt library provides general-purpose implementations of
various cryptographic algorithms.

Security Fix(es) :

* A design flaw was found in the libgcrypt PRNG (Pseudo-Random Number
Generator). An attacker able to obtain the first 580 bytes of the PRNG
output could predict the following 20 bytes. (CVE-2016-6313)

Red Hat would like to thank Felix Dorre and Vladimir Klebanov for
reporting this issue.

See also :

https://www.redhat.com/security/data/cve/CVE-2016-6313.html
http://rhn.redhat.com/errata/RHSA-2016-2674.html

Solution :

Update the affected libgcrypt, libgcrypt-debuginfo and / or
libgcrypt-devel packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 94626 ()

Bugtraq ID:

CVE ID: CVE-2016-6313

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