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Linux Kernel Shared Memory Restrictions Bypass
Secunia Advisory: SA19657
Release Date: 2006-04-19
Last Update: 2006-05-01
Popularity: 9,167 views

Critical:
Less critical
Impact: Security Bypass
Where: Local system
Solution Status: Vendor Patch

OS:Linux Kernel 2.6.x

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CVE reference:CVE-2006-1524
CVE-2006-2071


Description:
A vulnerability has been reported in Linux Kernel, which can be exploited by malicious, local users to bypass certain security restrictions.

The vulnerability is caused due to the "mprotect()" function giving write permissions to read-only attachments of shared memory regardless of the permissions given by IPC.

Solution:
Update to version 2.6.16.7.

Provided and/or discovered by:
Hugh Dickins

Changelog:
2006-05-01: Added CVE reference.

Original Advisory:
Kernel.org:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.6
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.7


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