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OpenBSD dhcpd Buffer Overflow Vulnerability
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Secunia Advisory:
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SA27160
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Release Date:
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2007-10-10
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Last Update:
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2007-10-11
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Popularity:
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10,346 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| OS: | OpenBSD 3.x
OpenBSD 4.0
OpenBSD 4.1
OpenBSD 4.2
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Binary Analysis:
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BA255 :: Available for 1 Credit 
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
A vulnerability has been reported in OpenBSD, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.
The vulnerability is caused due to the improper handling of DHCP requests within dhcpd in the "cons_options()" function in options.c. This can be exploited to cause a stack-based buffer overflow by sending a specially crafted DHCP request specifying a maximum message size between DHCP_FIXED_LEN and DHCP_FIXED_LEN + 3.
Successful exploitation may allow the execution of arbitrary code.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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