Unspecified vulnerability in Best Practical Solutions RT 3.0.0 through 3.6.6 allows remote authenticated users to cause a denial of service (CPU or memory consumption) via unspecified vectors related to the Devel::StackTrace module for Perl.
https://exchange.xforce.ibmcloud.com/vulnerabilities/43337
http://www.securityfocus.com/bid/29925
http://secunia.com/advisories/30830
http://lists.bestpractical.com/pipermail/rt-announce/2008-June/000158.html