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.
| Type | CWE ID | Description |
|---|---|---|
| text | N/A | n/a |
| Version | Base score | Base severity | Vector |
|---|
| CAPEC ID | Description |
|---|
| Event | Date |
|---|
| Hyperlink | Resource |
|---|---|
| http://ftp.digium.com/pub/asa/ASA-2007-015.pdf | x_refsource_CONFIRM |
| http://secunia.com/advisories/26099 | third-party-advisory x_refsource_SECUNIA |
| http://www.securityfocus.com/bid/24950 | vdb-entry x_refsource_BID |
| http://www.securitytracker.com/id?1018407 | vdb-entry x_refsource_SECTRACK |
| http://security.gentoo.org/glsa/glsa-200802-11.xml | vendor-advisory x_refsource_GENTOO |
| http://secunia.com/advisories/29051 | third-party-advisory x_refsource_SECUNIA |
| http://bugs.gentoo.org/show_bug.cgi?id=185713 | x_refsource_CONFIRM |
| http://www.vupen.com/english/advisories/2007/2563 | vdb-entry x_refsource_VUPEN |
| http://www.debian.org/security/2007/dsa-1358 | vendor-advisory x_refsource_DEBIAN |
| http://www.novell.com/linux/security/advisories/2007_15_sr.html | vendor-advisory x_refsource_SUSE |
| Version | Base score | Base severity | Vector |
|---|
| CAPEC ID | Description |
|---|
| Event | Date |
|---|
| Hyperlink | Resource |
|---|---|
| http://ftp.digium.com/pub/asa/ASA-2007-015.pdf | x_refsource_CONFIRM x_transferred |
| http://secunia.com/advisories/26099 | third-party-advisory x_refsource_SECUNIA x_transferred |
| http://www.securityfocus.com/bid/24950 | vdb-entry x_refsource_BID x_transferred |
| http://www.securitytracker.com/id?1018407 | vdb-entry x_refsource_SECTRACK x_transferred |
| http://security.gentoo.org/glsa/glsa-200802-11.xml | vendor-advisory x_refsource_GENTOO x_transferred |
| http://secunia.com/advisories/29051 | third-party-advisory x_refsource_SECUNIA x_transferred |
| http://bugs.gentoo.org/show_bug.cgi?id=185713 | x_refsource_CONFIRM x_transferred |
| http://www.vupen.com/english/advisories/2007/2563 | vdb-entry x_refsource_VUPEN x_transferred |
| http://www.debian.org/security/2007/dsa-1358 | vendor-advisory x_refsource_DEBIAN x_transferred |
| http://www.novell.com/linux/security/advisories/2007_15_sr.html | vendor-advisory x_refsource_SUSE x_transferred |