CVE-2009-3560

medium Apache
CVSS v3 Base Score
5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS Score
3.0%
Exploitation probability in 30 days
Top 13% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Confidentiality
None
Integrity
None
Availability
P
Published: December 4, 2009 (6005 days ago)
Last Modified: April 23, 2026
Vendor: Apache
Source: NVD

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.

CWE

CWE-119

Affected Products

libexpat project libexpatapache http server

References

🔗 expat.cvs.sourceforge.net 🔗 expat.cvs.sourceforge.net 🔗 lists.opensuse.org 🔗 lists.opensuse.org 🔗 lists.opensuse.org