CVE-2009-5016 Information

Description

Integer overflow in the xml_utf8_decode function in ext/xml/xml.c in PHP before 5.2.11 makes it easier for remote attackers to bypass cross-site scripting (XSS) and SQL injection protection mechanisms via a crafted string that uses overlong UTF-8 encoding a different vulnerability than CVE-2010-3870.

Reference

http://bugs.php.net/bug.php?id=49687 http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.html http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.html http://secunia.com/advisories/42410 http://secunia.com/advisories/42812 http://sirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.html http://www.blackhat.com/presentations/bh-usa-09/VELANAVA/BHUSA09-VelaNava-FavoriteXSS-SLIDES.pdf http://www.redhat.com/support/errata/RHSA-2010-0919.html http://www.redhat.com/support/errata/RHSA-2011-0195.html http://www.securityfocus.com/bid/44889 http://www.ubuntu.com/usn/USN-1042-1 http://www.vupen.com/english/advisories/2010/3081 http://www.vupen.com/english/advisories/2011/0020 http://www.vupen.com/english/advisories/2011/0021 http://www.vupen.com/english/advisories/2011/0077