CVE-2009-3720

Medium

Description

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.

SeverityMedium
CVSS5.0
Exploit probability—
ProductLibexpat
PublishedNov 3, 2009
First seenNov 3, 2009

How to fix

Affected products

ProductAffected versionsFixed in
libexpat_project libexpat2.0.1—
apache http_server2.0.35 ≤ v < 2.0.64, 2.2.0 ≤ v < 2.2.172.0.64, 2.2.17

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