cve/2009/CVE-2009-3560.md

CVE-2009-3560

Description

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

POC

Reference

• http://www.ubuntu.com/usn/USN-890-6

Github

• https://github.com/krlabs/apache-vulnerabilities
• https://github.com/lekctut/sdb-hw-13-01
• https://github.com/pedr0alencar/vlab-metasploitable2