Vulnonym.org

CVE-2008-1923 - Expansionism Pitches

Description

The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679 when configured to allow unauthenticated calls sends \early audio\ to an unverified source IP address of a NEW message which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.

Reference

http://www.altsci.com/concepts/page.php?s=asteri&p=1 http://bugs.digium.com/view.php?id=10078 http://downloads.digium.com/pub/security/AST-2008-006.html https://exchange.xforce.ibmcloud.com/vulnerabilities/42049