Mark Vitale

An issue was discovered where several RPC server routines did not fully initialize their output variables before returning, resulting in memory contents leakage from both the stack and the heap. The OpenAFS cache manager, functioning as an Rx server for the AFSCB service, makes clients susceptible to information leakage. For instance, `RXAFSCB TellMeAboutYourself` leaks kernel memory and `KAM ListEntry` leaks kaserver memory.

An issue was discovered where several data types used as RPC input variables were implemented as unbounded array types. This could allow an unauthenticated attacker to send large input values, consuming server resources and denying service to other valid connections.

The issue allows remote attackers to obtain sensitive directory information. This can be achieved through various vectors, including the client cache partition, the fileserver vice partition, or certain RPC responses.