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Linux Kernel "mmap_min_addr" Security Bypass
Secunia Advisory: SA28070
Release Date: 2007-12-12
Last Update: 2007-12-19
Popularity: 9,649 views

Critical:
Not critical
Impact: Security Bypass
Where: Local system
Solution Status: Vendor Workaround

OS:Linux Kernel 2.6.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 the Linux Kernel, which can be exploited by malicious, local users to bypass certain security restrictions.

The security issue is caused due to the improper enforcing of the "mmap_min_addr" limit. This can be exploited to allocate pages lower than "mmap_min_addr" by expanding the stack or via "do_brk()" in specially crafted binaries.

The security issue affects all 2.6.23 versions.

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



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