CVE-2008-1923

Name	CVE-2008-1923
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asterisk (PTS)	bullseye	1:16.28.0~dfsg-0+deb11u4	fixed
	bullseye (security)	1:16.28.0~dfsg-0+deb11u5	fixed
	sid	1:22.1.0~dfsg+~cs6.14.60671435-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
asterisk	source	etch	(unfixed)	end-of-life
asterisk	source	(unstable)	1:1.4.19.1~dfsg-1	medium

[etch] - asterisk <end-of-life> (Etch Packages no longer covered by security support)