Ubuntu 8.04 LTS / 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : gnutls13, gnutls26 vulnerability (USN-1752-1)

Medium Nessus Plugin ID 64928


The remote Ubuntu host is missing one or more security-related patches.


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.

Plugin Details

Severity: Medium

ID: 64928

File Name: ubuntu_USN-1752-1.nasl

Version: $Revision: 1.9 $

Type: local

Agent: unix

Published: 2013/02/28

Modified: 2016/05/25

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4

Temporal Score: 3.8

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

Temporal Vector: CVSS2#E:F/RL:ND/RC:ND

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libgnutls13, p-cpe:/a:canonical:ubuntu_linux:libgnutls26, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:11.10, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2013/02/27

Reference Information

CVE: CVE-2013-1619

BID: 57736

OSVDB: 89848

USN: 1752-1