National Vulnerability Database (NVD) National Vulnerability Database (CVE-2009-3720)

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NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

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NVD contains:

CVE Vulnerabilities: 39671
Checklists: 129
US-CERT Alerts: 187
US-CERT Vuln Notes: 2351
OVAL Queries: 2517
CPE Names: 17905

Last updated: Mon Nov 23 09:46:19 EST 2009

CVE Publication rate: 9.67

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Vulnerability Workload Index: 5.35

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NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

NIST Security Configuration Checklists - CSD

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Vulnerability Summary for CVE-2009-3720

Original release date:11/03/2009

Last revised:11/12/2009

Source: US-CERT/NIST

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 v2 Base Score:5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows disruption of serviceUnknown

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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: 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