Date: Fri, 09 May 2014 09:49:52 +0200 From: Martin Prpic <mprpic@...hat.com> To: oss-security@...ts.openwall.com Subject: CVE request: python-lxml clean_html() input sanitization flaw Hi, can a CVE be assigned to the following issue? The lxml.html.clean module cleans up HTML by removing embedded or script content, special tags, CSS style annotations and much more. It was found  that the clean_html() function, provided by the lxml.html.clean module, did not properly clean HTML input if it included non-printed characters (\x01-\x08). A remote attacker could use this flaw to serve malicious content to an application using the clean_html() function to process HTML, possibly allowing the attacker to inject malicious code into a website generated by this application. This issue has been reported upstream at  and a patch is available at .  http://seclists.org/fulldisclosure/2014/Apr/210  https://mailman-mail5.webfaction.com/pipermail/lxml/2014-April/007128.html  https://github.com/lxml/lxml/commit/e86b294f1f81b899a59925123560ff924a72f1cc Red Hat Bugzilla bug: https://bugzilla.redhat.com/show_bug.cgi?id=1092613 -- Martin Prpič / Red Hat Security Response Team
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