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Apache 2 mod_ssl Denial of Service Vulnerability
Secunia Advisory: SA18307
Release Date: 2006-01-06
Last Update: 2006-05-01
Popularity: 17,737 views

Critical:
Less critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

Software:Apache 2.0.x

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CVE reference:CVE-2005-3357


Description:
keilh has reported a vulnerability in Apache 2 mod_ssl, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a NULL pointer dereference error in mod_ssl. This can be exploited to crash Apache via a specially crafted request.

Successful exploitation requires that the server is using the non-default worker MPM, is configured with a SSL virtual host with access control, and using a custom 400 error document.

Solution:
Update to version 2.0.58 or later.

Provided and/or discovered by:
keilh

Changelog:
2006-05-01: Updated "Solution" section.

Original Advisory:
Apache Bugzilla:
http://issues.apache.org/bugzilla/show_bug.cgi?id=37791

Red Hat Bugzilla:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=175720


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