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I. Basic Information for CVE-2009-3720
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Expat 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Expat是一款使用C语言编写的快速流式XML解析器。 Expat 2.0.1版本的libexpat模块中存在安全漏洞。当Expat在 Python,、PyXML、 w3c-libwww和其他软件中运行时，攻击者可以将包含UTF-8字符序列的特制XML文档作为libexpat模块中lib/xmltok_impl.c的updatePosition函数参数以触发buffer over-read，造成拒绝服务(应用程序崩溃)。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
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II. Public POCs for CVE-2009-3720
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III. Intelligence Information for CVE-2009-3720
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IV. Related Vulnerabilities
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Same vendor: n/a
V. Comments for CVE-2009-3720

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