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OpenBSD sempahores Denial of Service Vulnerability
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Secunia Advisory:
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SA21642
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Release Date:
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2006-08-28
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Last Update:
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2006-08-29
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Popularity:
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7,779 views
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Critical:
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Not critical
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Impact:
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DoS
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| OS: | OpenBSD 3.x
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Subscribe:
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| CVE reference: | CVE-2006-4435
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Description:
A vulnerability has been reported in OpenBSD, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within the kernel when more than the default number of semaphores have been allocated.
Successful exploitation causes a kernel panic.
Solution:
Apply patches.
OpenBSD 3.9:
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/007_sem.patch
OpenBSD 3.8:
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.8/common/012_sem.patch
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2006-08-29: Added CVE reference.
Original Advisory:
http://www.openbsd.org/errata.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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