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Family: Denial of Service --> Category: infos

Apache Input Header Folding and mod_ssl ssl_io_filter_cleanup DoS Vulnerabilities Vulnerability Scan

Vulnerability Scan Summary
Checks for version of Apache

Detailed Explanation for this Vulnerability Test

Synopsis :

The remote web server is prone to multiple denial of service attacks.

Description :

The remote host appears to be running a version of Apache 2.x which is
older than 2.0.50.

There is denial of service flaw in Apache 2.0.x that can be triggered
by sending a specially-crafted HTTP request, which results in the
consumption of an arbitrary amount of memory. On 64-bit systems with
more than 4GB virtual memory, this may lead to heap based buffer

There is also a denial of service vulnerability in mod_ssl's
'ssl_io_filter_cleanup' function. By sending a request to vulnerable
server over SSL and closing the connection before the server can send
a response, a possible hacker can cause a memory violation that crashes the

See also :

Solution :

Upgrade to Apache 2.0.50 or newer.

Threat Level:

Low / CVSS Base Score : 2

Click HERE for more information and discussions on this network vulnerability scan.


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