{"id":"CVE-2021-41690","state":"PUBLISHED","title":"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. Sen","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.","publishedAt":"2022-06-28T09:41:00.000Z","updatedAt":"2025-11-03T20:33:59.706Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://github.com/DCMTK/dcmtk","https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb","https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html","https://lists.debian.org/debian-lts-announce/2025/01/msg00032.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:01.697Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/41xxx/CVE-2021-41690.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-41690","state":"PUBLISHED","datePublished":"2022-06-28T09:41:00.000Z","dateUpdated":"2025-11-03T20:33:59.706Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-09-27T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/DCMTK/dcmtk"},{"url":"https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html","name":"[debian-lts-announce] 20240628 [SECURITY] [DLA 3847-1] dcmtk security update","tags":["mailing-list"]}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2024-06-28T19:06:08.740Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-07-09T18:13:18.028574Z","id":"CVE-2021-41690","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-07-09T18:13:26.233Z"}},{"title":"CVE Program Container","references":[{"url":"https://github.com/DCMTK/dcmtk","tags":["x_transferred"]},{"url":"https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html","name":"[debian-lts-announce] 20240628 [SECURITY] [DLA 3847-1] dcmtk security update","tags":["mailing-list","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00032.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:33:59.706Z"}}]}}}