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VULNERABILITIES

CVE-2021-40648 Details

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.

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CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933 CVEExploitThird Party Advisory
https://gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933 [email protected]ExploitThird Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]

Affected Products

ProductVersions
man2html project man2html
1.6g

CPE

  • cpe:2.3:a:man2html_project:man2html:1.6g:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-40648
NVD Published Date:
Sep 9, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-40648 Details - Not Deferred