CVE-2021-40648

Name	CVE-2021-40648
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	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	1021738

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
man2html (PTS)	buster	1.6g-11	vulnerable
	bookworm, sid, bullseye	1.6g-14	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
man2html	source	(unstable)	(unfixed)			1021738

Notes

[bookworm] - man2html <no-dsa> (Minor issue)
[bullseye] - man2html <no-dsa> (Minor issue)
[buster] - man2html <no-dsa> (Minor issue)
https://gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933