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>> Linux Kernel "mmap_min_addr" Local Security Bypass Vulnerability
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Title : Linux Kernel "mmap_min_addr" Local Security Bypass Vulnerability
VUPEN ID : VUPEN/ADV-2007-4200
CVE ID : CVE-2007-6434
Rated as : Low Risk 
Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2007-12-12
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A vulnerability has been identified in Linux Kernel, which could be exploited by malicious users to bypass security restrictions. This issue is caused by an error in the "do_brk()" [mm/mmap.c] function that does not properly restrict access to low pages available in userspace virtual memory, which could be exploited by local attackers to bypass the "mmap_min_addr" memory protection mechanism via a specially crafted binary.
Affected Products
Linux Kernel versions prior to 2.6.24-rc5
Solution
Upgrade to Linux Kernel version 2.6.24-rc5 :
http://www.kernel.org
References
http://www.vupen.com/english/advisories/2007/4200
http://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.24-rc5
Credits
Vulnerability reported by the vendor.
ChangeLog
2007-12-12 : Initial release
Vulnerability Management
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