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Asterisk null pointer dereference remote pre-authentication DoS vulnerability

Vulnerability Note VU#228032

Original Release Date: 2007-03-05 | Last Revised: 2007-03-19

Overview

Asterisk contains a null pointer dereference vulnerability that may allow a remote, unauthenticated attacker to cause a denial-of-service condition on a vulnerable system.

Description

Asterisk is a popular PBX application with VoIP support. Asterisk contains a null pointer dereference vulnerability that can allow a remote, unauthenticated attacker to crash the Asterisk server software with a specially crafted Session Initiation Protocol (SIP) packet (typically udp/5060).

Impact

A remote, unauthenticated attacker may be able to cause a denial of service on a vulnerable server.

Solution

Apply an update

This issue is addressed in Asterisk versions 1.4.1 and 1.2.16.

Vendor Information

228032
 
Affected   Unknown   Unaffected

Asterisk

Updated:  March 05, 2007

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

This issue is addressed in Asterisk versions 1.4.1 and 1.2.16.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A

References

Credit

This vulnerability was reported by the Mu Security research team.

This document was written by Will Dormann.

Other Information

CVE IDs: CVE-2007-1306
Severity Metric: 7.85
Date Public: 2007-03-04
Date First Published: 2007-03-05
Date Last Updated: 2007-03-19 19:15 UTC
Document Revision: 12

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