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FreeBSD procfs and linprocfs Integer Overflow Vulnerabilities
Secunia Advisory: SA9927
Release Date: 2003-10-04
Popularity: 8,551 views

Critical:
Less critical
Impact: Exposure of sensitive information
DoS
Where: Local system
Solution Status: Vendor Patch

OS:FreeBSD 4.x
FreeBSD 5.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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

Description:
Vulnerabilities have been reported in FreeBSD, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or gain knowledge of sensitive information.

The vulnerabilities are caused due to missing input validation of the "uio" offset parameter in the process file system (procfs) and Linux process file system (linprocfs). These can be exploited by specifying an extremely large or negative value as an offset.

Successful exploitation results in a kernel panic or discloses a larger portion of kernel memory.

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



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