Unspecified vulnerability in Tor before 0.2.0.34 allows directory mirrors to cause a denial of service (exit node crash) via "malformed input."
https://exchange.xforce.ibmcloud.com/vulnerabilities/49323
http://www.securityfocus.com/bid/33713
http://security.gentoo.org/glsa/glsa-200904-11.xml
http://secunia.com/advisories/34583