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I. Basic Information for CVE-2021-40648
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
In man2html 1.6g, a filename can be created to overwrite the previous size parameter of the next chunk and the fd, bk, fd_nextsize, bk_nextsize of the current chunk. The next chunk is then freed later on, causing a freeing of an arbitrary amount of memory.
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
man2html 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
man2html是日本HAMANO Tsukasa个人开发者的一个纯 manroff 到 html 的转换器。 man2html 1.6g 版本存在安全漏洞,该漏洞源于可以通过特制文件名来覆盖下一个块的 previous size 参数和当前块的 fd、bk、fd_nextsize、bk_nextsize 参数。
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
-n/a n/a -
II. Public POCs for CVE-2021-40648
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III. Intelligence Information for CVE-2021-40648
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