Title: Tor Unspecified Remote Memory Corruption Vulnerability
Severity: CRITICAL
Description:
Tor is an implementation of second-generation Onion Routing, a connection-oriented anonymizing communication service. Tor uses the DH (Diffie-Hellman) key-exchange protocol to create ephemeral keys for encryption when communicating with servers in the Tor network. The Tor network uses random paths through Tor routers to obscure the origin, destination, and contents of TCP-based network communication.
The application is prone to a heap-corruption issue because of unspecified errors.
Very few details are currently available. We will update this BID as more information emerges.
Successfully exploiting this issue may allow remote attackers to execute arbitrary code in the context of the user running the application. Failed exploit attempts will likely result in denial-of-service conditions.
This issue affects versions prior to Tor 0.2.0.33.
Affected Products:
- Gentoo Linux
- RedHat Fedora 9
- Tor Tor 0.2.0.31
- Tor Tor 0.2.0.32
References:
- Tor: Tor 0.2.0.33 is released
- Tor Project: Tor Homepage
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