This script is Copyright (C) 2013-2014 Tenable Network Security, Inc.
The remote Red Hat host is missing one or more security updates.
An updated libgcrypt package that fixes one security issue is now
available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team 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 libgcrypt library provides general-purpose implementations of
various cryptographic algorithms.
It was found that GnuPG was vulnerable to the Yarom/Falkner
flush+reload cache side-channel attack on the RSA secret exponent. An
attacker able to execute a process on the logical CPU that shared the
L3 cache with the GnuPG process (such as a different local user or a
user of a KVM guest running on the same host with the kernel same-page
merging functionality enabled) could possibly use this flaw to obtain
portions of the RSA secret key. (CVE-2013-4242)
All libgcrypt users are advised to upgrade to this updated package,
which contains a backported patch to correct this issue.
See also :
Update the affected libgcrypt, libgcrypt-debuginfo and / or
Risk factor :
Low / CVSS Base Score : 1.9
CVSS Temporal Score : 1.7
Public Exploit Available : true