[horde] Groupware: Apache says "anary mismatch on efree() - heap overflow detected"

[Oskar Eyb]

Hello,

Id like to take a look at the horde groupware application, but it dont 
work out yet. Take a look on httpd-error.log:


[Wed Jan 16 19:47:43 2008] [error] ALERT - canary mismatch on efree() - 
heap overflow detected (attacker '88.67.25.231', file 
'/var/www/htdocs/groupware/index.php')


The ip adress is my client.

PHP 5.2.5, Apache 1.3.39, FreeBSD 7

Any hints?


Regards,
Oskar