CVE-2013-2765

The ModSecurity module before 2.7.4 for the Apache HTTP Server allows remote attackers to cause a denial of service (NULL pointer dereference, process crash, and disk consumption) via a POST request with a large body and a crafted Content-Type header.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Potential Mitigations

References

• http://archives.neohapsis.com/archives/bugtraq/2013-05/0125.html
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
• http://sourceforge.net/mailarchive/message.php?msg_id=30900019
• http://www.modsecurity.org/
• http://www.shookalabs.com/
• https://bugzilla.redhat.com/show_bug.cgi?id=967615
• https://github.com/SpiderLabs/ModSecurity/commit/0840b13612a0b7ef1ce7441cf811dcfc6b463fba
• https://github.com/shookalabs/exploits/blob/master/modsecurity_cve_2013_2765_check.py
• https://raw.github.com/SpiderLabs/ModSecurity/master/CHANGES