Debian: DSA-2421-1 Critical: Moodle Remote Security Issues Resolved

Several security issues have been fixed in Moodle, a course management
system for online learning:

CVE-2011-4308 / CVE-2012-0792

Rossiani Wijaya discovered an information leak in
mod/forum/user.php

CVE-2011-4584

MNET authentication didn't prevent a user using "Login As" from
jumping to a remove MNET SSO.

CVE-2011-4585

Darragh Enright discovered that the change password form was send in
over plain HTTP even if httpslogin was set to "true".

CVE-2011-4586

David Michael Evans and German Sanchez Gances discovered CRLF
injection/HTTP response splitting vulnerabilities in the Calendar
module.

CVE-2011-4587

Stephen Mc Guiness discovered empty passwords could be entered in
some circumstances.

CVE-2011-4588

Patrick McNeill that IP address restrictions could be bypassed in
MNET.

CVE-2012-0796

Simon Coggins discovered that additional information could be
injected into mail headers.

CVE-2012-0795

John Ehringer discovered that email adresses were insufficiently
v...