CVE-2021-20193

Name	CVE-2021-20193
Description	A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw allows an attacker who can submit a crafted input file to tar to cause uncontrolled consumption of memory. The highest threat from this vulnerability is to system availability.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	medium
Debian Bugs	980525

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tar (PTS)	stretch	1.29b-1.1	vulnerable
	buster	1.30+dfsg-6	vulnerable
	bullseye, sid	1.34+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
tar	source	(unstable)	1.34+dfsg-1	unimportant		980525

Notes

https://savannah.gnu.org/bugs/?59897
https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777
Memory leak in CLI tool, no security impact