CVE-2021-41689

Name	CVE-2021-41689
Description	DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3847-1, DLA-4038-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
dcmtk (PTS)	bullseye	3.6.5-1	vulnerable
	bullseye (security)	3.6.5-1+deb11u1	fixed
	bookworm	3.6.7-9~deb12u1	fixed
	sid, trixie	3.6.8-7	fixed

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

Package	Type	Release	Fixed Version	Origin
dcmtk	source	buster	3.6.4-2.1+deb10u1	DLA-3847-1
dcmtk	source	bullseye	3.6.5-1+deb11u1	DLA-4038-1
dcmtk	source	(unstable)	3.6.7-1

https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d (DCMTK-3.6.7)