Unscored severity · published Nov 3, 2009
CVE-2009-3720
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…
–
CVSS
27.9%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)27.9% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HS
HTTP Server · Apache
2.0.35 before 2.0.64; 2.2.0 before 2.2.17 · source: NVD
LI
Libexpat · Libexpat Project
2.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2009-3720
CVE.org
https://www.cve.org/CVERecord?id=CVE-2009-3720
Exploit
http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?r1=1.13&r2=1.15&view=patch
Mailing List
http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051228.html
Mailing List
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051247.html
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051367.html
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051405.html
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