CVE-2011-0491

The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to "underflow errors."

Date published : 2011-01-19

http://www.securityfocus.com/bid/45953

http://blog.torproject.org/blog/tor-02129-released-security-patches