Debian DSA-2526-1 : libotr - heap-based buffer overflows

medium Nessus Plugin ID 61495

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Synopsis

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

Description

Just Ferguson discovered that libotr, an off-the-record (OTR) messaging library, can be forced to perform zero-length allocations for heap buffers that are used in base64 decoding routines. An attacker can exploit this flaw by sending crafted messages to an application that is using libotr to perform denial of service attacks or potentially execute arbitrary code.

Solution

Upgrade the libotr packages.

For the stable distribution (squeeze), this problem has been fixed in version 3.2.0-2+squeeze1.

Plugin Details

Severity: Medium

ID: 61495

File Name: debian_DSA-2526.nasl

Version: 1.9

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/13/2012

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:6.0, p-cpe:/a:debian:debian_linux:libotr

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/12/2012

Reference Information

CVE: CVE-2012-3461

BID: 54907

DSA: 2526

Detections

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