CVE-2021-41690

Name	CVE-2021-41690
Description	DCMTK through 3.6.6 does not handle memory free properly. The malloced memory for storing all file information are recorded in a global variable LST and are not freed properly. Sending specific requests to the dcmqrdb program can incur a memory leak. An attacker can use it to launch a DoS attack.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
dcmtk (PTS)	buster	3.6.4-2.1	vulnerable
	bullseye	3.6.5-1	vulnerable
	bookworm, sid	3.6.7-5	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
dcmtk	source	(unstable)	3.6.7-1

Notes

[bullseye] - dcmtk <no-dsa> (Minor issue)
[buster] - dcmtk <no-dsa> (Minor issue)
https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb (DCMTK-3.6.7)