CVE-2007-3763

high

Description

The IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted (1) LAGRQ or (2) LAGRP frame that contains information elements of IAX frames, which results in a NULL pointer dereference when Asterisk does not properly set an associated variable.

References

http://www.vupen.com/english/advisories/2007/2563

http://www.securitytracker.com/id?1018407

http://www.securityfocus.com/bid/24950

http://www.novell.com/linux/security/advisories/2007_15_sr.html

http://www.debian.org/security/2007/dsa-1358

http://security.gentoo.org/glsa/glsa-200802-11.xml

http://secunia.com/advisories/29051

http://secunia.com/advisories/26099

http://ftp.digium.com/pub/asa/ASA-2007-015.pdf

http://bugs.gentoo.org/show_bug.cgi?id=185713

Details

Source: Mitre, NVD

Published: 2007-07-18

Updated: 2011-03-08

Risk Information

CVSS v2

Base Score: 5

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

Severity: Medium

CVSS v3

Base Score: 7.5

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

Severity: High