CVE-2013-1855 Information

Description

The sanitize_css method in lib/action_controller/vendor/html-scanner/html/sanitizer.rb in the Action Pack component in Ruby on Rails before 2.3.18 3.0.x and 3.1.x before 3.1.12 and 3.2.x before 3.2.13 does not properly handle \n (newline) characters which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences.

Reference

http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html http://lists.opensuse.org/opensuse-updates/2013-04/msg00072.html http://lists.opensuse.org/opensuse-updates/2013-04/msg00073.html http://lists.opensuse.org/opensuse-updates/2014-01/msg00013.html http://rhn.redhat.com/errata/RHSA-2013-0698.html http://rhn.redhat.com/errata/RHSA-2014-1863.html http://support.apple.com/kb/HT5784 http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released/ https://groups.google.com/group/rubyonrails-security/msg/8ed835a97cdd1afd?dmode=source&output=gplain