Luigi Auriemma has reported a vulnerability in Doom 3, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially to compromise a vulnerable system.
The vulnerability is caused due to a format string error in the Doom 3 engine when displaying certain PunkBuster packets in the game console. This can be exploited via specially crafted "PB_Y" or "PB_U" packets sent to the server.
Successful exploitation may allow execution of arbitrary code but requires that PunkBuster is active on the server.
Solution: Host games only in a trusted network environment.
Provided and/or discovered by: Luigi Auriemma
Original Advisory: http://aluigi.altervista.org/adv/d3engfspb-adv.txt
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Subject: Doom 3 Engine Format String Vulnerability
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