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Got Hyperthreading, start worrying.

Discussion in 'General Discussions and Lounge' started by Duke, May 17, 2005.

  1. Duke

    Duke Guest

    "Intel Corp.'s hyperthreading technology could allow a hacker to steal security keys from a compromised server using a sophisticated timing attack, a researcher said Friday in a paper presented at the BSDCan 2005 conference.

    Hyperthreading allows software to take advantage of unused execution units in a processor. It essentially allows two separate processes, or software threads, to execute on a single processor at the same time, improving performance on software written to take advantage of the technology. By taking advantage of the fact that the processes share access to a chip's cache memory, a malicious user can determine the security keys to a particular computer by monitoring the cache for those keys, said Colin Percival, an independent researcher, in a paper posted to his Web site. "

    Source: Computerworld.com

    You gotta know that if this vulnerability is being exposed on servers then it's likely not too long before you see it on a PC near you, say 2 feet away and to your lower right (or left I guess).

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