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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2009-3720 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Vendor Statements (disclaimer)

Official Statement from Red Hat (03/05/2010)

Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-3720 The Red Hat Security Response Team has rated this issue as having moderate security impact in Python, a future update may address this flaw. If a system has PyXML installed, Python will use PyXML for expat-related functions and is then not vulnerable to the issue.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?r1=1.13&r2=1.15&view=patch Exploit 
http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log Mailing List  Third Party Advisory 
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051228.html Third Party Advisory 
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051247.html Mailing List  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 Third Party Advisory 
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051442.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html Third Party Advisory  VDB Entry 
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html Third Party Advisory  VDB Entry 
http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html Third Party Advisory  VDB Entry 
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html Third Party Advisory  VDB Entry 
http://lists.vmware.com/pipermail/security-announce/2010/000082.html Broken Link 
http://mail.python.org/pipermail/expat-bugs/2009-January/002781.html Third Party Advisory 
http://marc.info/?l=bugtraq&m=130168502603566&w=2 Mailing List  Third Party Advisory 
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.486026 Mailing List  Third Party Advisory 
http://sourceforge.net/tracker/index.php?func=detail&aid=1990430&group_id=10127&atid=110127 Mailing List  Third Party Advisory 
http://sunsolve.sun.com/search/document.do?assetkey=1-66-273630-1 Broken Link 
http://svn.python.org/view?view=rev&revision=74429 Permissions Required  Third Party Advisory 
http://www.mandriva.com/security/advisories?name=MDVSA-2009:211 Permissions Required  Third Party Advisory 
http://www.mandriva.com/security/advisories?name=MDVSA-2009:212 Broken Link 
http://www.mandriva.com/security/advisories?name=MDVSA-2009:215 Broken Link 
http://www.mandriva.com/security/advisories?name=MDVSA-2009:216 Broken Link 
http://www.mandriva.com/security/advisories?name=MDVSA-2009:217 Broken Link 
http://www.mandriva.com/security/advisories?name=MDVSA-2009:218 Broken Link 
http://www.mandriva.com/security/advisories?name=MDVSA-2009:219 Broken Link 
http://www.mandriva.com/security/advisories?name=MDVSA-2009:220 Broken Link 
http://www.openwall.com/lists/oss-security/2009/08/21/2 Mailing List 
http://www.openwall.com/lists/oss-security/2009/08/26/3 Mailing List 
http://www.openwall.com/lists/oss-security/2009/08/26/4 Mailing List 
http://www.openwall.com/lists/oss-security/2009/08/27/6 Mailing List 
http://www.openwall.com/lists/oss-security/2009/09/06/1 Mailing List 
http://www.openwall.com/lists/oss-security/2009/10/22/5 Mailing List 
http://www.openwall.com/lists/oss-security/2009/10/22/9 Mailing List 
http://www.openwall.com/lists/oss-security/2009/10/23/2 Mailing List 
http://www.openwall.com/lists/oss-security/2009/10/23/6 Mailing List 
http://www.openwall.com/lists/oss-security/2009/10/26/3 Mailing List 
http://www.openwall.com/lists/oss-security/2009/10/28/3 Mailing List 
http://www.redhat.com/support/errata/RHSA-2010-0002.html Broken Link 
http://www.redhat.com/support/errata/RHSA-2011-0896.html Broken Link 
http://www.securitytracker.com/id?1023160 Third Party Advisory  VDB Entry 
http://www.ubuntu.com/usn/USN-890-1 Third Party Advisory 
http://www.ubuntu.com/usn/USN-890-6 Third Party Advisory 
http://www.vupen.com/english/advisories/2010/0528 Broken Link 
http://www.vupen.com/english/advisories/2010/0896 Broken Link 
http://www.vupen.com/english/advisories/2010/1107 Broken Link 
http://www.vupen.com/english/advisories/2010/3035 Broken Link 
http://www.vupen.com/english/advisories/2010/3053 Broken Link 
http://www.vupen.com/english/advisories/2010/3061 Broken Link 
http://www.vupen.com/english/advisories/2011/0359 Broken Link 
https://bugs.gentoo.org/show_bug.cgi?id=280615 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=531697 Issue Tracking 
https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r2295080a257bad27ea68ca0af12fc715577f9e84801eae116a33107e%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r5f9c22f9c28adbd9f00556059edc7b03a5d5bb71d4bb80257c0d34e4%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/rad2acee3ab838b52c04a0698b1728a9a43467bf365bd481c993c535d%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/rb9c9f42dafa25d2f669dac2a536a03f2575bc5ec1be6f480618aee10%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/reb7c64aeea604bf948467d9d1cab8ff23fa7d002be1964bcc275aae7%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E Third Party Advisory 
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11019 Broken Link 
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12719 Broken Link 
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7112 Mailing List  Third Party Advisory 
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00370.html Third Party Advisory 
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00413.html Third Party Advisory 
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01274.html Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

14 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-3720
NVD Published Date:
11/03/2009
NVD Last Modified:
02/21/2024
Source:
Red Hat, Inc.