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FreeBSD FPU x87 Register Information Leak
Secunia Advisory: SA19715
Release Date: 2006-04-19
Last Update: 2006-04-20
Popularity: 8,749 views

Critical:
Not critical
Impact: Exposure of sensitive information
Where: Local system
Solution Status: Vendor Patch

OS:FreeBSD 4.x
FreeBSD 5.x
FreeBSD 6.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
A security issue has been reported in FreeBSD, which can be exploited by malicious, local users to gain knowledge of potentially sensitive information.

The problem is caused due to AMD K7/K8 CPUs only saving/restoring certain x87 registers in FXSAVE instructions when an exception is pending. This may leak x87 register information between processes.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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