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Debian DSA-3512-1 : libotr - security update

critical Nessus Plugin ID 89794

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Synopsis

The remote Debian host is missing a security-related update.

Description

Markus Vervier of X41 D-Sec GmbH discovered an integer overflow vulnerability in libotr, an off-the-record (OTR) messaging library, in the way how the sizes of portions of incoming messages were stored. A remote attacker can exploit this flaw by sending crafted messages to an application that is using libotr to perform denial of service attacks (application crash), or potentially, execute arbitrary code with the privileges of the user running the application.

Solution

Upgrade the libotr packages.

For the oldstable distribution (wheezy), this problem has been fixed in version 3.2.1-1+deb7u2.

For the stable distribution (jessie), this problem has been fixed in version 4.1.0-2+deb8u1.

See Also

https://packages.debian.org/source/wheezy/libotr

https://packages.debian.org/source/jessie/libotr

https://www.debian.org/security/2016/dsa-3512

Plugin Details

Severity: Critical

ID: 89794

File Name: debian_DSA-3512.nasl

Version: 2.11

Type: local

Agent: unix

Published: 3/10/2016

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:libotr, cpe:/o:debian:debian_linux:7.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/9/2016

Reference Information

CVE: CVE-2016-2851

DSA: 3512