Ubuntu 12.04 LTS : libotr vulnerability (USN-2926-1)

High Nessus Plugin ID 89866


The remote Ubuntu host is missing a security-related patch.


Markus Vervier discovered that OTR incorrectly handled large incoming messages. A remote attacker could use this issue to cause OTR 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 libotr2 package.

Plugin Details

Severity: High

ID: 89866

File Name: ubuntu_USN-2926-1.nasl

Version: $Revision: 2.7 $

Type: local

Agent: unix

Published: 2016/03/11

Modified: 2016/12/01

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 5.9

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

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


Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libotr2, cpe:/o:canonical:ubuntu_linux:12.04:-: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: 2016/03/10

Reference Information

CVE: CVE-2016-2851

OSVDB: 135667

USN: 2926-1