{"id":"CVE-2021-41689","state":"PUBLISHED","title":"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 nu","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.","publishedAt":"2022-06-28T09:38:17.000Z","updatedAt":"2025-11-03T20:33:58.161Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"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/5c14bf53fb42ceca12bbcc0016e8704b1580920d","https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html","https://lists.debian.org/debian-lts-announce/2025/01/msg00032.html"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T19:49:01.697Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/41xxx/CVE-2021-41689.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-41689","state":"PUBLISHED","datePublished":"2022-06-28T09:38:17.000Z","dateUpdated":"2025-11-03T20:33:58.161Z","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 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."}],"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/5c14bf53fb42ceca12bbcc0016e8704b1580920d"},{"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":"2024-06-28T19:06:03.859Z"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"dcmtk","product":"dcmtk","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.6.6","versionType":"custom"}],"cpes":["cpe:2.3:a:dcmtk:dcmtk:*:*:*:*:*:*:*:*"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-07-17T19:48:58.769156Z","id":"CVE-2021-41689","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","type":"CWE","lang":"en","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-07-17T19:55:05.017Z"}},{"title":"CVE Program Container","references":[{"url":"https://github.com/DCMTK/dcmtk","tags":["x_transferred"]},{"url":"https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d","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":"2025-11-03T20:33:58.161Z"}}]}}}