OpenBSD Semaphore Allocation Denial Of Service Vulnerability

BID:19713

CVE-2006-4435 |

Info

OpenBSD Semaphore Allocation Denial Of Service Vulnerability

Bugtraq ID: 19713
Class: Design Error
CVE:
Remote: No
Local: Yes
Published: Aug 25 2006 12:00AM
Updated: Sep 05 2006 06:18PM
Credit: The vendor disclosed this issue.
Vulnerable: OpenBSD OpenBSD 3.9
OpenBSD OpenBSD 3.8
Not Vulnerable:

Discussion

OpenBSD Semaphore Allocation Denial Of Service Vulnerability

OpenBSD is prone to a local denial-of-service vulnerability because of a flaw in affected kernels that results in a kernel crash when attempting to allocate more than a predefined number of semaphores.

This issue allows local attackers to crash affected kernels, denying further service to legitimate users.

Exploit / POC

OpenBSD Semaphore Allocation Denial Of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

OpenBSD Semaphore Allocation Denial Of Service Vulnerability

Solution:
Fixes are available for OpenBSD 3.8 and 3.9. Please see the reference section for more information.


OpenBSD OpenBSD 3.8

OpenBSD OpenBSD 3.9

References

OpenBSD Semaphore Allocation Denial Of Service Vulnerability

References:

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