National Cyber-Alert System

Vulnerability Summary for CVE-2009-3720

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: FEDORA

Name: FEDORA-2009-12753

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01274.html

External Source: FEDORA

Name: FEDORA-2009-12737

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00413.html

External Source: FEDORA

Name: FEDORA-2009-12690

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00370.html

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=531697

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=531697

External Source: CONFIRM

Name: https://bugs.gentoo.org/show_bug.cgi?id=280615

Hyperlink:https://bugs.gentoo.org/show_bug.cgi?id=280615

External Source: SECTRACK

Name: 1023160

Hyperlink:http://www.securitytracker.com/id?1023160

External Source: MLIST

Name: [oss-security] 20091028 Re: CVE Request -- expat [was: Re: Regarding expat bug 1990430]

Hyperlink:http://www.openwall.com/lists/oss-security/2009/10/28/3

External Source: MLIST

Name: [oss-security] 20091026 Re: CVE Request -- expat [was: Re: Regarding expat bug 1990430]

Hyperlink:http://www.openwall.com/lists/oss-security/2009/10/26/3

External Source: MLIST

Name: [oss-security] 20091023 Re: CVE Request -- expat [was: Re: Regarding expat bug 1990430]

Hyperlink:http://www.openwall.com/lists/oss-security/2009/10/23/6

External Source: MLIST

Name: [oss-security] 20091022 Re: Re: Regarding expat bug 1990430

Hyperlink:http://www.openwall.com/lists/oss-security/2009/10/23/2

External Source: MLIST

Name: [oss-security] 20091022 Re: Regarding expat bug 1990430

Hyperlink:http://www.openwall.com/lists/oss-security/2009/10/22/9

External Source: MLIST

Name: [oss-security] 20091022 Regarding expat bug 1990430

Hyperlink:http://www.openwall.com/lists/oss-security/2009/10/22/5

External Source: MLIST

Name: [oss-security] 20090906 Re: Re: expat bug 1990430

Hyperlink:http://www.openwall.com/lists/oss-security/2009/09/06/1

External Source: MLIST

Name: [oss-security] 20090827 Re: Re: expat bug 1990430

Hyperlink:http://www.openwall.com/lists/oss-security/2009/08/27/6

External Source: MLIST

Name: [oss-security] 20090826 Re: Re: expat bug 1990430

Hyperlink:http://www.openwall.com/lists/oss-security/2009/08/26/4

External Source: MLIST

Name: [oss-security] 20090826 Re: expat bug 1990430

Hyperlink:http://www.openwall.com/lists/oss-security/2009/08/26/3

External Source: MLIST

Name: [oss-security] 20090821 expat bug 1990430

Hyperlink:http://www.openwall.com/lists/oss-security/2009/08/21/2

External Source: MANDRIVA

Name: MDVSA-2009:220

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:220

External Source: MANDRIVA

Name: MDVSA-2009:219

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:219

External Source: MANDRIVA

Name: MDVSA-2009:218

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:218

External Source: MANDRIVA

Name: MDVSA-2009:217

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:217

External Source: MANDRIVA

Name: MDVSA-2009:216

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:216

External Source: MANDRIVA

Name: MDVSA-2009:215

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:215

External Source: MANDRIVA

Name: MDVSA-2009:212

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:212

External Source: MANDRIVA

Name: MDVSA-2009:211

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:211

External Source: CONFIRM

Name: http://svn.python.org/view?view=rev&revision=74429

Hyperlink:http://svn.python.org/view?view=rev&revision=74429

External Source: SUNALERT

Name: 273630

Hyperlink:http://sunsolve.sun.com/search/document.do?assetkey=1-66-273630-1

External Source: MISC

Name: http://sourceforge.net/tracker/index.php?func=detail&aid=1990430&group_id=10127&atid=110127

Hyperlink:http://sourceforge.net/tracker/index.php?func=detail&aid=1990430&group_id=10127&atid=110127

External Source: SECUNIA

Name: 37925

Hyperlink:http://secunia.com/advisories/37925

External Source: SECUNIA

Name: 37537

Hyperlink:http://secunia.com/advisories/37537

External Source: SECUNIA

Name: 37324

Hyperlink:http://secunia.com/advisories/37324

External Source: MLIST

Name: [expat-bugs] 20090117 [ expat-Bugs-1990430 ] Parser crash with specially formatted UTF-8 sequences

Hyperlink:http://mail.python.org/pipermail/expat-bugs/2009-January/002781.html

External Source: SUSE

Name: SUSE-SR:2009:018

Hyperlink:http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html

External Source: CONFIRM

Name: http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log

Hyperlink:http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?view=log

External Source: CONFIRM

Name: http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?r1=1.13&r2=1.15&view=patch

Hyperlink:http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmltok_impl.c?r1=1.13&r2=1.15&view=patch