CVE-2021-40648

Published: Sep 9, 2022Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

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.

Affected (1)

Products: Man2html Project: Man2html

Man2html Project

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Man2html Project Man2html	Version 1.6g

Related CWEs

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (2)

https://gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933

Source: cve@mitre.org

ExploitThird Party Advisory

https://gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

Timeline

No history available yet.