Vulnerability CVE-2009-3622
Published: 2009-10-23   Modified: 2012-02-13

Description:
Algorithmic complexity vulnerability in wp-trackback.php in WordPress before 2.8.5 allows remote attackers to cause a denial of service (CPU consumption and server hang) via a long title parameter in conjunction with a charset parameter composed of many comma-separated "UTF-8" substrings, related to the mb_convert_encoding function in PHP.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Wordpress Resource Exhaustion - Denial of Service Vulnerability
jcarlosn
26.10.2009

Type:

CWE-310

 (Cryptographic Issues)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Wordpress -> Wordpress 

 References:
http://codes.zerial.org/php/wp-trackbacks_dos.phps
http://marc.info/?l=oss-security&m=125612393329041&w=2
http://marc.info/?l=oss-security&m=125614592004825&w=2
http://rooibo.wordpress.com/2009/10/17/agujero-de-seguridad-en-wordpress/
http://seclists.org/fulldisclosure/2009/Oct/263
http://security-sh3ll.blogspot.com/2009/10/wordpress-resource-exhaustion-denial-of.html
http://securitytracker.com/id?1023072
http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/
http://www.vupen.com/english/advisories/2009/2986
https://bugzilla.redhat.com/show_bug.cgi?id=530056
https://exchange.xforce.ibmcloud.com/vulnerabilities/53884
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