CVE-2021-41690

Published Jun 28, 2022 CVSS 3.1 · 7.5 High EPSS 1.8% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3847-1 dcmtk security update
Debian DLA Debian DLA DLA-4038-1 dcmtk security update
EUVD EUVD EUVD-2021-28702 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.
Ubuntu USN Ubuntu USN USN-5882-1 DCMTK vulnerabilities
Ubuntu USN Ubuntu USN USN-7010-1 DCMTK vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics epss

{'score': 0.001}

epss

{'score': 0.0012}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 3, 2025, 8:33 PM
Reserved
Sep 27, 2021, 12:00 AM
Status
Modified
Published
Jun 28, 2022, 1:15 PM
Modified
Jun 17, 2026, 4:08 AM