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CVE-2009-3720

expat: buffer over-read and crash on XML with malformed UTF-8 sequences

The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML, w3c-libwww, and other software, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with crafted UTF-8 sequences that trigger a buffer over-read, a different vulnerability than CVE-2009-2625.

CVSS 2.0 · 5.0 Medium EPSS 27.9% KEV · Not listed
Vendors
Apache Libexpat Project Python and 1 more
Products
Http Server Libexpat Python and 4 more