Ubuntu Security Notice (C) 2013-2016 Canonical, Inc. / NASL script (C) 2013-2016 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related
Nadhem Alfardan and Kenny Paterson discovered that the TLS protocol as
used in GnuTLS was vulnerable to a timing side-channel attack known as
the 'Lucky Thirteen' issue. A remote attacker could use this issue to
perform plaintext-recovery attacks via analysis of timing data.
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.
Update the affected libgnutls13 and / or libgnutls26 packages.
Risk factor :
Medium / CVSS Base Score : 4.0
CVSS Temporal Score : 3.8
Public Exploit Available : true