CVE-2009-3720

libexpat 2.0.1 - Denial of Service via Crafted UTF-8 Sequences in updatePosition

Title source: llm
STIX 2.1

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.

References (93)

Core 93
Core References
Mailing List, Third Party Advisory vendor-advisory x_refsource_slackware
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.486026
Permissions Required, Third Party Advisory x_refsource_confirm
http://svn.python.org/view?view=rev&revision=74429
Broken Link vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:215
Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051442.html
Third Party Advisory vendor-advisory x_refsource_fedora
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01274.html
Third Party Advisory vendor-advisory x_refsource_fedora
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00370.html
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/38832
Broken Link vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2010-0002.html
Broken Link vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:216
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-890-1
Mailing List, Third Party Advisory x_refsource_confirm
http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log
Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/10/22/9
Broken Link vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:220
Third Party Advisory mailing-list x_refsource_mlist
http://mail.python.org/pipermail/expat-bugs/2009-January/002781.html
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/38794
Broken Link vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2010/1107
Permissions Required, Third Party Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:211
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/08/26/4
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/41701
Third Party Advisory, VDB Entry vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/08/21/2
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/37925
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/38050
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1023160
Third Party Advisory, VDB Entry vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
Mailing List, Third Party Advisory vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7112
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=531697
Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051367.html
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/10/23/2
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-890-6
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/10/26/3
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051247.html
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/08/26/3
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/42338
Third Party Advisory x_refsource_confirm
https://bugs.gentoo.org/show_bug.cgi?id=280615
Third Party Advisory vendor-advisory x_refsource_fedora
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00413.html
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/38231
Broken Link vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2010/3053
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/10/28/3
Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051228.html
Third Party Advisory, VDB Entry vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
Broken Link vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:212
Broken Link vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:218
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/38834
Broken Link vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2010/3061
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/39478
Third Party Advisory, VDB Entry vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/37537
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/10/22/5
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/43300
Broken Link vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2011-0896.html
Broken Link vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2010/0896
Broken Link vendor-advisory x_refsource_sunalert
http://sunsolve.sun.com/search/document.do?assetkey=1-66-273630-1
Mailing List, Third Party Advisory vendor-advisory x_refsource_hp
http://marc.info/?l=bugtraq&m=130168502603566&w=2
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/08/27/6
Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051405.html
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/09/06/1
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/10/23/6
Broken Link vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0359
Broken Link vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:219
Broken Link vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2010/3035
Broken Link vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:217
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/37324
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/42326
Broken Link vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2010/0528

Scores

EPSS 0.2792
EPSS Percentile 97.9%

Details

Status published
Products (2)
apache/http_server 2.0.35 - 2.0.64
libexpat_project/libexpat 2.0.1
Published Nov 03, 2009
Tracked Since Feb 18, 2026