CVE-2011-0427
Heap-based buffer overflow in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.
Date published : 2011-01-19
http://www.securityfocus.com/bid/45832
http://blog.torproject.org/blog/tor-02129-released-security-patches