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 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.

🔗 References (186)

• secalert@redhathttp://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?r1=1.13&r2=1.15&view=patch
• secalert@redhathttp://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log
• secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2010-November/051228.html
• secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2010-November/051247.html
• secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2010-November/051367.html
• secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2010-November/051405.html
• secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2010-November/051442.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
• secalert@redhathttp://lists.vmware.com/pipermail/security-announce/2010/000082.html
• secalert@redhathttp://mail.python.org/pipermail/expat-bugs/2009-January/002781.html
• secalert@redhathttp://marc.info/?l=bugtraq&m=130168502603566&w=2