Maybe you can check if we are affected by this bug at all. If I read it correctly at heise, there are only some special rewrite rules affected, But I think we dont use rewriting in the apache server on port 81. This would give us some extra time for testing the 1.3.37 update. To update apache to 1.3.37 in ISPConfig in SVN. 1) Replace the apache apache_1.3.36.tar.gz by the latest tar.gz version in the directory compile_apps 2) Replace mod_ssl (mod_ssl-2.8.27-1.3.36.tar.gz) by the latest version for apache 1.3.37, you can download it from modssl.org 3) Edit the file compile_apps/compile and change the version numbers of apache and mod_ssl in line 33 and 34 to the latest versions. These version numbers are the names of the tar.gz files without the tar.gz ending.