Debian DSA-2835-1 : asterisk - buffer overflow

medium Nessus Plugin ID 71848

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Synopsis

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

Description

Jan Juergens discovered a buffer overflow in the parser for SMS messages in Asterisk.

An additional change was backported, which is fully described in http://downloads.asterisk.org/pub/security/AST-2013-007.html

With the fix for AST-2013-007, a new configuration option was added in order to allow the system administrator to disable the expansion of'dangerous' functions (such as SHELL()) from any interface which is not the dialplan. In stable and oldstable this option is disabled by default. To enable it add the following line to the section '[options]' in /etc/asterisk/asterisk.conf (and restart asterisk)

live_dangerously = no

Solution

Upgrade the asterisk packages.

For the oldstable distribution (squeeze), this problem has been fixed in version 1:1.6.2.9-2+squeeze12.

For the stable distribution (wheezy), this problem has been fixed in version 1:1.8.13.1~dfsg1-3+deb7u3.

Plugin Details

Severity: Medium

ID: 71848

File Name: debian_DSA-2835.nasl

Version: 1.6

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 1/8/2014

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.4

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:asterisk, cpe:/o:debian:debian_linux:6.0, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/5/2014

Reference Information

CVE: CVE-2013-7100

BID: 64364

DSA: 2835

Detections

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