Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : libgcrypt11, libgcrypt20 vulnerability (USN-3065-1)

Medium Nessus Plugin ID 93046


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


Felix Dorre and Vladimir Klebanov discovered that Libgcrypt incorrectly handled mixing functions in the random number generator.
An attacker able to obtain 4640 bits from the RNG can trivially predict the next 160 bits of output.

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 libgcrypt11 and / or libgcrypt20 packages.

Plugin Details

Severity: Medium

ID: 93046

File Name: ubuntu_USN-3065-1.nasl

Version: $Revision: 2.4 $

Type: local

Agent: unix

Published: 2016/08/19

Modified: 2016/12/27

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.1

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

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


Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:X

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libgcrypt11, p-cpe:/a:canonical:ubuntu_linux:libgcrypt20, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04

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: 2016/08/18

Reference Information

CVE: CVE-2016-6313

OSVDB: 143068

USN: 3065-1