CVE-2011-2536
Published: 6 July 2011
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.4.x before 1.4.41.2, 1.6.2.x before 1.6.2.18.2, and 1.8.x before 1.8.4.4, and Asterisk Business Edition C.3.x before C.3.7.3, disregards the alwaysauthreject option and generates different responses for invalid SIP requests depending on whether the user account exists, which allows remote attackers to enumerate account names via a series of requests.
Priority
Status
Package | Release | Status |
---|---|---|
asterisk Launchpad, Ubuntu, Debian |
hardy |
Ignored
(end of life)
|
lucid |
Released
(1:1.6.2.5-0ubuntu1.4)
|
|
maverick |
Released
(1:1.6.2.7-1ubuntu1.2)
|
|
natty |
Released
(1:1.6.2.9-2ubuntu2.1)
|
|
oneiric |
Not vulnerable
(1:1.8.4.4~dfsg-2ubuntu1.1)
|
|
precise |
Not vulnerable
|
|
quantal |
Not vulnerable
|
|
upstream |
Released
(1.6.2.18.2, 1.8.4.4)
|
|
Patches: upstream: http://downloads.asterisk.org/pub/security/AST-2011-011-1.6.2.diff upstream: http://downloads.asterisk.org/pub/security/AST-2011-011-1.8.diff |