The LOB functionality in PEAR MDB2 before 2.5.0a1 interprets a request to store a URL string as a request to retrieve and store the contents of the URL, which might allow remote attackers to use MDB2 as an indirect proxy or obtain sensitive information via a URL into a form field in an MDB2 application, as demonstrated by a file:// URL or a URL for an intranet web site.
https://www.redhat.com/archives/fedora-package-announce/2007-November/msg00434.html
http://www.vupen.com/english/advisories/2007/3806
http://www.securityfocus.com/bid/26382
http://security.gentoo.org/glsa/glsa-200712-05.xml
http://secunia.com/advisories/27983
http://secunia.com/advisories/27626
http://secunia.com/advisories/27572
http://pear.php.net/package/MDB2/download/2.5.0a1
http://pear.php.net/bugs/bug.php?id=10024