Unrated severityNVD Advisory· Published Jun 28, 2022· Updated Nov 3, 2025
CVE-2021-41689
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.
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Affected products
2Patches
Vulnerability mechanics
References
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