CVE-2021-41687

HIGH

DCMTK < 3.6.6 - Denial of Service via Memory Leak in dcmqrdb

Title source: llm
STIX 2.1

Description

DCMTK through 3.6.6 does not handle memory free properly. The program malloc a heap memory for parsing data, but does not free it when error in parsing. Sending specific requests to the dcmqrdb program incur the memory leak. An attacker can use it to launch a DoS attack.

References (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.0128
EPSS Percentile 66.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (1)
offis/dcmtk < 3.6.6
Published Jun 28, 2022
Tracked Since Feb 18, 2026