REDHAT-BUG-530056
First published: Wed Oct 21 2009(Updated: )
A denial of service (resource exhaustion) flaw was found in the way WordPress used to handle HTTP headers, contained in the "trackback" message, sent to WordPress. A local, unprivileged user could sent a specially-crafted trackback message to running instance of WordPress, leading to its crash. References: ---------- <a href="http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/">http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/</a> <a href="http://seclists.org/fulldisclosure/2009/Oct/263">http://seclists.org/fulldisclosure/2009/Oct/263</a> PoC: ---- <a href="http://codes.zerial.org/php/wp-trackbacks_dos.phps">http://codes.zerial.org/php/wp-trackbacks_dos.phps</a> CVE was requested here: ----------------------- <a href="http://www.openwall.com/lists/oss-security/2009/10/21/2">http://www.openwall.com/lists/oss-security/2009/10/21/2</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| WordPress |
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Reference Links
- http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/
- http://seclists.org/fulldisclosure/2009/Oct/263
- http://codes.zerial.org/php/wp-trackbacks_dos.phps
- http://www.openwall.com/lists/oss-security/2009/10/21/2
- http://admin.fedoraproject.org/updates/wordpress-2.8.5-1.fc12
- http://admin.fedoraproject.org/updates/wordpress-2.8.5-1.fc11
- http://admin.fedoraproject.org/updates/wordpress-2.8.5-1.fc10
- http://admin.fedoraproject.org/updates/wordpress-2.8.5-1.el5
- http://admin.fedoraproject.org/updates/wordpress-mu-2.8.5.2-1.el5
- http://admin.fedoraproject.org/updates/wordpress-mu-2.8.5.2-1.fc11
- http://admin.fedoraproject.org/updates/wordpress-mu-2.8.5.2-1.fc10
- https://bugzilla.redhat.com/show_bug.cgi?id=530056
Frequently Asked Questions
What is the severity of REDHAT-BUG-530056?
The severity of REDHAT-BUG-530056 is categorized as a denial of service vulnerability.
How do I fix REDHAT-BUG-530056?
To fix REDHAT-BUG-530056, update to the latest version of WordPress that addresses this vulnerability.
Who is affected by REDHAT-BUG-530056?
Any installation of WordPress that processes trackback messages is affected by REDHAT-BUG-530056.
What type of attack is REDHAT-BUG-530056 associated with?
REDHAT-BUG-530056 is associated with a resource exhaustion attack leading to denial of service.
Can an unprivileged user exploit REDHAT-BUG-530056?
Yes, an unprivileged user can exploit REDHAT-BUG-530056 by sending specially-crafted trackback messages.
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