CVE-2009-3720

N/A Unknown
Published: November 03, 2009 Modified: April 23, 2026
View on NVD

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.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051247.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
Source: secalert@redhat.com
Third Party Advisory VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
Source: secalert@redhat.com
Third Party Advisory VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
Source: secalert@redhat.com
Third Party Advisory VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
Source: secalert@redhat.com
Third Party Advisory VDB Entry
http://mail.python.org/pipermail/expat-bugs/2009-January/002781.html
Source: secalert@redhat.com
Third Party Advisory
http://marc.info/?l=bugtraq&m=130168502603566&w=2
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://secunia.com/advisories/37324
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/37537
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/37925
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/38050
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/38231
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/38794
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/38832
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/38834
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/39478
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/41701
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/42326
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/42338
Source: secalert@redhat.com
Broken Link
http://secunia.com/advisories/43300
Source: secalert@redhat.com
Broken Link
http://sourceforge.net/tracker/index.php?func=detail&aid=1990430&group_id=10127&atid=110127
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://svn.python.org/view?view=rev&revision=74429
Source: secalert@redhat.com
Permissions Required Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2009:211
Source: secalert@redhat.com
Permissions Required Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/08/21/2
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/08/26/3
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/08/26/4
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/08/27/6
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/09/06/1
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/22/5
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/22/9
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/23/2
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/23/6
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/26/3
Source: secalert@redhat.com
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/28/3
Source: secalert@redhat.com
Mailing List
http://www.redhat.com/support/errata/RHSA-2010-0002.html
Source: secalert@redhat.com
Broken Link
http://www.redhat.com/support/errata/RHSA-2011-0896.html
Source: secalert@redhat.com
Broken Link
http://www.securitytracker.com/id?1023160
Source: secalert@redhat.com
Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-890-1
Source: secalert@redhat.com
Third Party Advisory
http://www.ubuntu.com/usn/USN-890-6
Source: secalert@redhat.com
Third Party Advisory
http://www.vupen.com/english/advisories/2010/0528
Source: secalert@redhat.com
Broken Link
http://www.vupen.com/english/advisories/2010/0896
Source: secalert@redhat.com
Broken Link
http://www.vupen.com/english/advisories/2010/1107
Source: secalert@redhat.com
Broken Link
http://www.vupen.com/english/advisories/2010/3035
Source: secalert@redhat.com
Broken Link
http://www.vupen.com/english/advisories/2010/3053
Source: secalert@redhat.com
Broken Link
http://www.vupen.com/english/advisories/2010/3061
Source: secalert@redhat.com
Broken Link
http://www.vupen.com/english/advisories/2011/0359
Source: secalert@redhat.com
Broken Link
https://bugs.gentoo.org/show_bug.cgi?id=280615
Source: secalert@redhat.com
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=531697
Source: secalert@redhat.com
Issue Tracking
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7112
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051228.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051247.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051367.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051405.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051442.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://lists.vmware.com/pipermail/security-announce/2010/000082.html
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://mail.python.org/pipermail/expat-bugs/2009-January/002781.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://marc.info/?l=bugtraq&m=130168502603566&w=2
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://secunia.com/advisories/37324
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/37537
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/37925
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/38050
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/38231
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/38794
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/38832
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/38834
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/39478
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/41701
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/42326
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/42338
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://secunia.com/advisories/43300
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.486026
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://sourceforge.net/tracker/index.php?func=detail&aid=1990430&group_id=10127&atid=110127
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-66-273630-1
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://svn.python.org/view?view=rev&revision=74429
Source: af854a3a-2127-422b-91ae-364da2661108
Permissions Required Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2009:211
Source: af854a3a-2127-422b-91ae-364da2661108
Permissions Required Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2009:212
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2009:215
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2009:216
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2009:217
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2009:218
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2009:219
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2009:220
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.openwall.com/lists/oss-security/2009/08/21/2
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/08/26/3
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/08/26/4
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/08/27/6
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/09/06/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/22/5
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/22/9
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/23/2
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/23/6
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/26/3
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2009/10/28/3
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.redhat.com/support/errata/RHSA-2010-0002.html
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.redhat.com/support/errata/RHSA-2011-0896.html
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.securitytracker.com/id?1023160
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-890-1
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.ubuntu.com/usn/USN-890-6
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.vupen.com/english/advisories/2010/0528
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.vupen.com/english/advisories/2010/0896
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.vupen.com/english/advisories/2010/1107
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.vupen.com/english/advisories/2010/3035
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.vupen.com/english/advisories/2010/3053
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.vupen.com/english/advisories/2010/3061
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
http://www.vupen.com/english/advisories/2011/0359
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
https://bugs.gentoo.org/show_bug.cgi?id=280615
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=531697
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7112
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00370.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00413.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01274.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

186 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
1.2%
79th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

apache a_m_kuchling python libexpat_project