Package: moodle
Severity: grave
Tags: security patch

Hi,

A security issue has been discovered in Smarty which is also shipped as part 
of Moodle:

| The modifier.regex_replace.php plugin in Smarty before 2.6.19, as used
| by Serendipity (S9Y) and other products, allows attackers to call
| arbitrary PHP functions via templates, related to a '0' character in
| a search string.

Please see the original bug in Smarty here: #469492. The patch is very 
straigtforward.

The right solution here is to not ship Smarty as part of Moodle but make use 
of the smarty package that is already in the archive, because the security 
team now has to issue multiple DSA's for this single issue which is obviously 
problematic.

Could you please take the following actions:
* To address this bug for lenny and sid, please prepare a version of Moodle 
that works with the archive version of smarty;
* For sarge and etch, please prepare updated packages addressing this bug and 
#432264, which is also still open in sarge/etch.



thanks,
Thijs

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