CVE-2020-5209

Name	CVE-2020-5209
Description	In NetHack before 3.6.5, unknown options starting with -de and -i can cause a buffer overflow resulting in a crash or remote code execution/privilege escalation. This vulnerability affects systems that have NetHack installed suid/sgid and shared systems that allow users to influence command line options. Users should upgrade to NetHack 3.6.5.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
nethack (PTS)	jessie	3.4.3-15	vulnerable
	stretch	3.6.0-4	vulnerable
	buster	3.6.1-1	vulnerable
	bullseye	3.6.6-2	fixed
	bookworm	3.6.6-3	fixed
	sid, trixie	3.6.7-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
nethack	source	wheezy	(unfixed)	end-of-life
nethack	source	(unstable)	3.6.6-1	unimportant

Notes

https://github.com/NetHack/NetHack/security/advisories/GHSA-fw72-r8xm-45p8
https://github.com/NetHack/NetHack/commit/f3def5c0b999478da2d0a8f0b6a7c370a2065f77
Negligible security impact