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Apache mod_proxy "Content-Length:" Header Buffer Overflow Vulnerability
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Secunia Advisory:
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SA11841
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Release Date:
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2004-06-10
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Last Update:
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2005-10-14
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Popularity:
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30,248 views
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Critical:
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Highly critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Apache 1.3.x
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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:
Georgi Guninski has discovered a vulnerability in Apache, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the Apache mod_proxy module. This can be exploited to cause a heap-based buffer overflow by passing a "Content-Length:" header containing a large negative value.
Successful exploitation may reportedly crash the child process and potentially allow code execution on some BSD systems, if an Apache server, which is configured as a proxy, connects to a malicious site.
The vulnerability affects versions 1.3.31, 1.3.29, 1.3.28, 1.3.27, and 1.3.26.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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