CVE-2009-0041

Name	CVE-2009-0041
Description	IAX2 in Asterisk Open Source 1.2.x before 1.2.31, 1.4.x before 1.4.23-rc4, and 1.6.x before 1.6.0.3-rc2; Business Edition A.x.x, B.x.x before B.2.5.7, C.1.x.x before C.1.10.4, and C.2.x.x before C.2.1.2.1; and s800i 1.2.x before 1.3.0 responds differently to a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DSA-1952-1
Debian Bugs	513413

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asterisk (PTS)	buster	1:16.2.1~dfsg-1+deb10u2	fixed
	buster (security)	1:16.28.0~dfsg-0+deb10u2	fixed
	bullseye	1:16.28.0~dfsg-0+deb11u1	fixed
	bullseye (security)	1:16.28.0~dfsg-0+deb11u2	fixed
	bookworm, sid	1:20.1.0~dfsg+~cs6.12.40431414-1	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	lenny	1:1.4.21.2~dfsg-3+lenny1		DSA-1952-1
asterisk	source	(unstable)	1:1.6.1.0~dfsg~rc3-1	low		513413

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