We've had some chatter on this mailing list about problems with the Security Review module on upgrading to drupal 7.24

I think there may be a solution : see https://drupal.org/node/2142621

I'm new to drupal/PHP but what I can see is that the patch offered there is for a very simple code change, and is perhaps an example of an outdated function call being replaced by a more secure on.

I hope this is of some help to someone. :) I try to give back or pay forward ...

cheers