CVE-2009-3720
No CVSS score yet. EPSS 28% chance of exploitation in the next 30 days.
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.
- EPSS
- 28% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:http_server
- libexpat_project:libexpat
References
- http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?r1=1.13&r2=1.15&view=patch
- http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log
- http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051228.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051247.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051367.html