A vulnerability has been reported in OpenAFS, which can be exploited by malicious users to cause a DoS (Denial od Service).
The vulnerability is caused due to a race condition error within the "GiveUpAllCallBacks" RPC handler and can be exploited to crash the file server by simultaneously acquiring and giving back callbacks on a file.
The vulnerability is reported in the following versions:
* OpenAFS 1.3.x subsequent to 1.3.50
* OpenAFS 1.4.x up to and including OpenAFS 1.4.5
* OpenAFS 1.5.x up to and including OpenAFS 1.5.27
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Subject: OpenAFS File Server Denial of Service Vulnerability
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