MEDIUM
The web interface in CUPS before 1.4.2, as used on Apple Mac OS X before 10.6.2 and other platforms, does not properly handle (1) HTTP headers and (2) HTML templates, which allows remote attackers to conduct cross-site scripting (XSS) attacks and HTTP response splitting attacks via vectors related to (a) the product's web interface, (b) the configuration of the print system, and (c) the titles of printed jobs, as demonstrated by an XSS attack that uses the kerberos parameter to the admin program, and leverages attribute injection and HTTP Parameter Pollution (HPP) issues.
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
http://secunia.com/advisories/37308
http://secunia.com/advisories/37360
http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021115.1-1
http://support.apple.com/kb/HT3937
http://www.cups.org/articles.php?L590
http://www.cups.org/documentation.php/relnotes.html
http://www.cups.org/str.php?L3367
http://www.mandriva.com/security/advisories?name=MDVSA-2010:072
http://www.mandriva.com/security/advisories?name=MDVSA-2010:073
http://www.redhat.com/support/errata/RHSA-2009-1595.html
http://www.securityfocus.com/bid/36956
http://www.vupen.com/english/advisories/2009/3184
https://bugzilla.redhat.com/show_bug.cgi?id=529833
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9153