CVE-2021-40648

NameCVE-2021-40648
DescriptionIn 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.
SourceCVE (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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
man2html (PTS)buster1.6g-11vulnerable
bookworm, sid, bullseye1.6g-14vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
man2htmlsource(unstable)(unfixed)

Notes

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

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