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.
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History
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Status: PUBLISHED
Assigner: mitre
Published: 2022-06-28T09:41:00.000Z
Updated: 2025-11-03T20:33:59.706Z
Reserved: 2021-09-27T00:00:00.000Z
Link: CVE-2021-41690
Updated: 2025-11-03T20:33:59.706Z
Status : Modified
Published: 2022-06-28T13:15:10.783
Modified: 2025-11-03T21:15:43.707
Link: CVE-2021-41690
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