Vulnerability Note VU#228032

Asterisk null pointer dereference remote pre-authentication DoS vulnerability

Original Release date: 05 Mar 2007 | Last revised: 19 Mar 2007

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.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
AsteriskAffected-05 Mar 2007
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A 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
  • Date Public: 04 Mar 2007
  • Date First Published: 05 Mar 2007
  • Date Last Updated: 19 Mar 2007
  • Severity Metric: 7.85
  • Document Revision: 12

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