CVE-2009-3560

Medium

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.

SeverityMedium
CVSS5.0
Exploit probability—
ProductLibexpat
PublishedDec 4, 2009
First seenDec 4, 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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