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Category:   OS (UNIX)  >   OpenBSD Kernel Vendors:   OpenBSD
OpenBSD Kernel Semaphore Allocation Bug Lets Local Users Deny Service
SecurityTracker Alert ID:  1016756
SecurityTracker URL:  http://securitytracker.com/id/1016756
CVE Reference:   CVE-2006-4435   (Links to External Site)
Updated:  Jun 8 2008
Original Entry Date:  Aug 25 2006
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.8, 3.9
Description:   A vulnerability was reported in the OpenBSD Kernel. A local user can cause denial of service conditions.

A local user can cause more than the default number of semaphores to be allocated to cause a kernel panic.

Impact:   A local user can cause a kernel panic.
Solution:   OpenBSD has issued the following fixes:

ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/007_sem.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.8/common/012_sem.patch

Vendor URL:  www.openbsd.org/ (Links to External Site)
Cause:   Resource error, State error

Message History:   None.


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