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CVE-2009-3727

Published: 10 November 2009

Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.3, 1.6.0.x before 1.6.0.17, and 1.6.1.x before 1.6.1.9; Business Edition A.x.x, B.x.x before B.2.5.12, C.2.x.x before C.2.4.5, and C.3.x.x before C.3.2.2; AsteriskNOW 1.5; and s800i 1.3.x before 1.3.0.5 generate different error messages depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames via multiple crafted REGISTER messages with inconsistent usernames in the URI in the To header and the Digest in the Authorization header.

Priority

Low

Status

Package Release Status
asterisk
Launchpad, Ubuntu, Debian
dapper Ignored
(end of life)
hardy Ignored
(end of life)
intrepid Ignored
(end of life, was needed)
jaunty Ignored
(end of life)
karmic
Released (1:1.6.2.0~rc2-0ubuntu1.1)
lucid Not vulnerable
(1:1.6.2.0~rc2-0ubuntu1)
maverick Not vulnerable
(1:1.6.2.0~rc2-0ubuntu1)
natty Not vulnerable
(1:1.6.2.0~rc2-0ubuntu1)
upstream
Released (1.6.0.17)
Patches:
upstream: http://downloads.digium.com/pub/asa/AST-2009-008-1.4.diff.txt
debdiff: https://bugs.launchpad.net/ubuntu/karmic/+source/asterisk/+bug/491632