CVE-2021-41689

Published: 28 June 2022

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.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
dcmtk Launchpad, Ubuntu, Debian	bionic	Released (3.6.2-3ubuntu0.1~esm1)
	focal	Released (3.6.4-2.1ubuntu0.1~esm1)
	impish	Ignored (reached end-of-life)
	jammy	Released (3.6.6-5ubuntu0.1~esm1)
	kinetic	Not vulnerable (3.6.7-5)
	trusty	Does not exist
	upstream	Released (3.6.7-1)
	xenial	Released (3.6.1~20150924-5ubuntu0.1~esm1)

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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