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FreeBSD Hyper-Threading Support Information Disclosure
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Secunia Advisory:
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SA15348
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Release Date:
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2005-05-13
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Last Update:
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2005-05-24
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Popularity:
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17,584 views
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Critical:
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Less critical
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Impact:
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Exposure of sensitive information
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| OS: | FreeBSD 4.x
FreeBSD 5.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Colin Percival has reported a vulnerability in FreeBSD, which can be exploited by malicious, local users to gain knowledge of sensitive information.
The vulnerability is caused due to a design error in the Hyper-Threading Technology (HTT) as threads share various CPU resources including memory caches. This makes it possible for one thread to monitor the execution of another thread and access potentially sensitive information in the shared memory caches (e.g. cryptographic keys used by OpenSSH or SSL-enabled applications).
Successful exploitation requires that the system has a processor with Hyper-Threading support.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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