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I. Basic Information for CVE-2021-23180
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in htmldoc in v1.9.12 and before. Null pointer dereference in file_extension(),in file.c may lead to execute arbitrary code and denial of service.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
HTMLDOC 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HTMLDOC是一款能够将HTML和Markdown文件转换为EPUB、索引HTML、PostScript和PDF等格式文件的开源程序。 HTMLDOC 存在代码问题漏洞,该漏洞源于对 file.c 中的 file_extension() 函数中用户提供的输入的验证不足。远程攻击者利用该漏洞可以执行拒绝服务(DoS)攻击。受影响的产品和版本:htmldoc (Debian 包):1.9.2-1、1.9.2-2、1.9.3、1.9.3-1、1.9.7-1、1.9.8、1.9.8-1、1.9.8-2。
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
-htmldoc Fixed in htmldoc v1.9.12 and above. -
II. Public POCs for CVE-2021-23180
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III. Intelligence Information for CVE-2021-23180
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IV. Related Vulnerabilities
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