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Insecure Library Loading
Moderately critical

ModSecurity Two Denial of Service Vulnerabilities

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Release Date:  2009-03-12    Last Update:  2009-06-09    Views:  3,626

Secunia Advisory SA34256

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Two vulnerabilities have been reported in ModSecurity, which can be exploited by malicious people to cause a DoS (Denial of Service).

1) An error in the PDF XSS protection implementation can be exploited to cause a crash via a specially crafted HTTP request.

Successful exploitation requires that PDF XSS protection is enabled (disabled by default).

2) An NULL pointer dereference error when parsing multipart requests can be exploited to cause a crash via multipart content with a missing part header name.


Solution:
Update to version 2.5.9.

Provided and/or discovered by:
The vendor credits:
1) Steve Grubb, Red Hat
2) Juan Galiana Lara, Internet Security Auditors

Original Advisory:
http://www.modsecurity.org/
http://sourceforge.net/project/shownotes.php?release_id=667538
http://sourceforge.net/project/shownotes.php?release_id=667542

Internet Security Auditors:
http://lists.grok.org.uk/pipermail/full-disclosure/2009-March/068467.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: ModSecurity Two Denial of Service Vulnerabilities

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