CVE-2009-5016
MEDIUM severity · CVSS 6.8 · CWE-189
6.8CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)3%
AV:N/AC:M/Au:N/C:P/I:P/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- 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://www.redhat.com/support/errata/RHSA-2010-0919.html
- http://bugs.php.net/bug.php?id=49687Exploit
- http://sirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.htmlExploit
- http://www.blackhat.com/presentations/bh-usa-09/VELANAVA/BHUSA09-VelaNava-FavoriteXSS-SLIDES.pdfExploit