Ubuntu 12.04 LTS / 14.04 LTS / 14.10 / 15.04 : libtasn1-3, libtasn1-6 vulnerability (USN-2604-1)

Medium Nessus Plugin ID 83344


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


Hanno Bock discovered that Libtasn1 incorrectly handled certain ASN.1 data. A remote attacker could possibly exploit this with specially crafted ASN.1 data and cause applications using Libtasn1 to crash, resulting in a denial of service, or possibly execute arbitrary code.

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 libtasn1-3 and / or libtasn1-6 packages.

Plugin Details

Severity: Medium

ID: 83344

File Name: ubuntu_USN-2604-1.nasl

Version: $Revision: 2.5 $

Type: local

Agent: unix

Published: 2015/05/12

Modified: 2016/08/03

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 3.4

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libtasn1-3, p-cpe:/a:canonical:ubuntu_linux:libtasn1-6, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:14.10, cpe:/o:canonical:ubuntu_linux:15.04

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: 2015/05/11

Reference Information

CVE: CVE-2015-3622

OSVDB: 121517

USN: 2604-1