{"id":"CVE-2021-41690","aliases":["DEBIAN-CVE-2021-41690","DLA-3847-1","DLA-4038-1","EUVD-2021-28702","GHSA-xqr6-h56f-8r2j","MGASA-2023-0083","UBUNTU-CVE-2021-41690","USN-5882-1","USN-7010-1"],"status":"published","title":"DCMTK through 3.6.6 does not handle memory free properly. The malloced memory for storing all...","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01838,"percentile":0.79234,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-401"],"published":"2022-06-28T09:41:00Z","modified":"2026-10-23T18:03:50Z","fixes":[{"ecosystem":"Debian:12","package":"dcmtk","fixed_in":["3.6.7-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"dcmtk","fixed_in":["3.6.7-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"dcmtk","fixed_in":["3.6.7-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"dcmtk","fixed_in":["3.6.1~20150924-5ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"dcmtk","fixed_in":["3.6.2-3ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"dcmtk","fixed_in":["3.6.4-2.1ubuntu0.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"dcmtk","fixed_in":["3.6.4-2.1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:22.04:LTS","package":"dcmtk","fixed_in":["3.6.6-5ubuntu0.1~esm1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.7-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.7-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.7-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-2.1+deb10u1"}]}],"versions":["3.6.4-2.1"],"bundled":9},{"source":"osv","ecosystem":"Debian:11","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.5-1+deb11u1"}]}],"versions":["3.6.5-1"],"bundled":11},{"source":"osv","ecosystem":"Mageia:8","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.5-3.1.mga8"}]}],"bundled":8},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.1~20150924-5ubuntu0.1~esm1"}]}],"versions":["3.6.0-15.1","3.6.1~20150629-5","3.6.1~20150924-4","3.6.1~20150924-5"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.2-3ubuntu0.1~esm1"}]}],"versions":["3.6.2-2","3.6.2-2build1","3.6.2-3","3.6.2-3build1","3.6.2-3build2","3.6.2-3build3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-2.1ubuntu0.1"}]}],"versions":["3.6.4-2.1","3.6.4-2.1build1","3.6.4-2.1build2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-2.1ubuntu0.1~esm1"}]}],"versions":["3.6.4-2.1","3.6.4-2.1build1","3.6.4-2.1build2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-5ubuntu0.1~esm1"}]}],"versions":["3.6.5-1","3.6.6-3ubuntu1","3.6.6-3ubuntu2","3.6.6-4","3.6.6-5"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.1~20150924-5ubuntu0.1~esm1"}]}],"versions":["3.6.0-15.1","3.6.1~20150629-5","3.6.1~20150924-4","3.6.1~20150924-5"],"bundled":10},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.2-3ubuntu0.1~esm1"}]}],"versions":["3.6.2-2","3.6.2-2build1","3.6.2-3","3.6.2-3build1","3.6.2-3build2","3.6.2-3build3"],"bundled":10},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-2.1ubuntu0.1~esm1"}]}],"versions":["3.6.4-2.1","3.6.4-2.1build1","3.6.4-2.1build2"],"bundled":10},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-5ubuntu0.1~esm1"}]}],"versions":["3.6.5-1","3.6.6-3ubuntu1","3.6.6-3ubuntu2","3.6.6-4","3.6.6-5"],"bundled":10},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.1~20150924-5ubuntu0.1~esm2"}]}],"versions":["3.6.0-15.1","3.6.1~20150629-5","3.6.1~20150924-4","3.6.1~20150924-5","3.6.1~20150924-5ubuntu0.1~esm1"],"bundled":9},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.2-3ubuntu0.1~esm2"}]}],"versions":["3.6.2-2","3.6.2-2build1","3.6.2-3","3.6.2-3build1","3.6.2-3build2","3.6.2-3build3","3.6.2-3ubuntu0.1~esm1"],"bundled":9},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-2.1ubuntu0.1"}]}],"versions":["3.6.4-2.1","3.6.4-2.1build1","3.6.4-2.1build2"],"bundled":9},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-5ubuntu0.1~esm2"}]}],"versions":["3.6.5-1","3.6.6-3ubuntu1","3.6.6-3ubuntu2","3.6.6-4","3.6.6-5","3.6.6-5ubuntu0.1~esm1"],"bundled":9},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"dcmtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.7-9.1ubuntu0.1~esm1"}]}],"versions":["3.6.7-9","3.6.7-9.1build2","3.6.7-9.1build3","3.6.7-9.1build4"],"bundled":9}],"products":[{"vendor":"offis","product":"dcmtk"}],"references":[{"url":"https://github.com/DCMTK/dcmtk","tags":["x_transferred","Product","Third Party Advisory","package","report"]},{"url":"https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb","tags":["x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html","tags":["mailing-list","x_transferred","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00032.html","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41690"},{"url":"https://github.com/advisories/GHSA-xqr6-h56f-8r2j"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-41690","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2023-0083.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=30790","tags":["report"]},{"url":"https://dicom.offis.de/download/dcmtk/dcmtk367/ANNOUNCE","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/2Z7WVDK43MKWOS23BIN4VCQRQRXHGSDB/","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/WF2FCZOYXVZ4ETCHO62JWUP4D55UWJCV/","tags":["web"]},{"url":"https://ubuntu.com/security/notices/USN-5882-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-41690","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-41690","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7010-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2015-8979","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-1010228","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-41687","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-41688","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-41689","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-2119","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-2120","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-2121","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-43272","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-28130","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-34508","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-34509","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-41690","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.","status":"published","published":"2022-06-28T09:41:00Z","modified":"2025-11-03T20:33:59.706Z","updated_at":"2026-11-02T14:32:59.430294Z"}],"euvd":[{"id":"EUVD-2021-28702","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.","status":"published","published":"2022-06-28T09:41:00Z","modified":"2025-11-03T20:33:59Z","updated_at":"2026-11-02T19:49:32.503916Z"}],"ghsa":[{"id":"GHSA-xqr6-h56f-8r2j","title":"DCMTK through 3.6.6 does not handle memory free properly. The malloced memory for storing all...","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.","status":"published","published":"2022-06-29T00:00:55Z","modified":"2025-11-03T21:30:42Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T15:04:18.176646Z"}],"nvd":[{"id":"CVE-2021-41690","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.","status":"published","published":"2022-06-28T13:15:10.783Z","modified":"2026-06-17T04:08:48.917Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T14:07:06.501652Z"}],"osv":[{"id":"CVE-2021-41690","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.","status":"published","published":"2022-06-28T13:15:10.783Z","modified":"2026-10-20T10:54:01.883520923Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:21.557945Z"},{"id":"DEBIAN-CVE-2021-41690","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.","status":"published","published":"2022-06-28T13:15:10.783Z","modified":"2026-10-23T18:03:50.864698992Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:35.799676Z"},{"id":"UBUNTU-CVE-2021-41690","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.","status":"published","published":"2022-06-28T13:15:00Z","modified":"2026-04-22T13:01:37.76625Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:29.220315Z"},{"id":"DLA-3847-1","title":"dcmtk - security update","status":"published","published":"2024-06-28T00:00:00Z","modified":"2026-03-09T01:23:28.01278Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"DLA-4038-1","title":"dcmtk - security update","status":"published","published":"2025-01-31T00:00:00Z","modified":"2026-03-09T01:18:13.121146Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"MGASA-2023-0083","title":"Updated dcmtk packages fix security vulnerability","description":"Jinsheng Ba discovered that DCMTK incorrectly handled certain requests. If\na user or an automated system were tricked into opening a certain\nspecially crafted input file, a remote attacker could possibly use this\nissue to cause a denial of service. (CVE-2021-41687, CVE-2021-41688,\nCVE-2021-41689, and CVE-2021-41690)\n\nSharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled\ncertain inputs. If a user or an automated system were tricked into opening\na certain specially crafted input file, a remote attacker could possibly\nuse this issue to execute arbitrary code. (CVE-2022-2119 and\nCVE-2022-2120)\n\nSharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled\npointers. If a user or an automated system were tricked into opening a\ncertain specially crafted input file, a remote attacker could possibly use\nthis issue to cause a denial of service. (CVE-2022-2121)\n\nIt was discovered that DCMTK incorrectly handled certain inputs. If a\nuser or an automated system were tricked into opening a certain specially\ncrafted input file, a remote attacker could possibly use this issue to\ncause a denial of service. (CVE-2022-43272)\n","status":"published","published":"2023-03-11T19:00:39Z","modified":"2026-04-16T04:41:21.850253307Z","updated_at":"2026-11-02T15:49:42.263076Z"},{"id":"USN-5882-1","title":"dcmtk vulnerabilities","description":"Gjoko Krstic discovered that DCMTK incorrectly handled buffers. If a user or\nan automated system were tricked into opening a certain specially crafted \ninput file, a remote attacker could possibly use this issue to cause a \ndenial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2015-8979)\n\nOmar Ganiev discovered that DCMTK incorrectly handled buffers. If a user or\nan automated system were tricked into opening a certain specially crafted \ninput file, a remote attacker could possibly use this issue to cause a \ndenial of service. This issue only affected Ubuntu 16.04 LTS and \nUbuntu 18.04 LTS. (CVE-2019-1010228)\n\nJinsheng Ba discovered that DCMTK incorrectly handled certain requests. If a\nuser or an automated system were tricked into opening a certain specially\ncrafted input file, a remote attacker could possibly use this issue to \ncause a denial of service. This issue only affected Ubuntu 16.04 LTS, \nUbuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2021-41687,\nCVE-2021-41688, CVE-2021-41689, and CVE-2021-41690)\n\nSharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled\ncertain inputs. If a user or an automated system were tricked into opening\na certain specially crafted input file, a remote attacker could possibly use\nthis issue to execute arbitrary code. This issue only affected \nUbuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.\n(CVE-2022-2119 and CVE-2022-2120)\n\nSharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled\npointers. If a user or an automated system were tricked into opening a\ncertain specially crafted input file, a remote attacker could possibly use\nthis issue to cause a denial of service. This issue only affected\nUbuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.\n(CVE-2022-2121)\n\nIt was discovered that DCMTK incorrectly handled certain inputs. If a\nuser or an automated system were tricked into opening a certain specially\ncrafted input file, a remote attacker could possibly use this issue to \ncause a denial of service. This issue affected Ubuntu 16.04 LTS, \nUbuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 22.10.\n(CVE-2022-43272)\n","status":"published","published":"2023-02-22T18:23:35Z","modified":"2026-08-31T17:15:57.740481573Z","updated_at":"2026-11-02T16:58:16.738762Z"},{"id":"USN-7010-1","title":"dcmtk vulnerabilities","description":"Jinsheng Ba discovered that DCMTK incorrectly handled certain requests. If\na user or an automated system were tricked into opening a certain specially\ncrafted input file, a remote attacker could possibly use this issue to\ncause a denial of service. This issue only affected Ubuntu 20.04 LTS.\n(CVE-2021-41687, CVE-2021-41688, CVE-2021-41689, CVE-2021-41690)\n\nSharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled\npointers. If a user or an automated system were tricked into opening a\ncertain specially crafted input file, a remote attacker could possibly use\nthis issue to cause a denial of service. This issue only affected\nUbuntu 20.04 LTS. (CVE-2022-2121)\n\nIt was discovered that DCMTK incorrectly handled certain inputs. If a\nuser or an automated system were tricked into opening a certain specially\ncrafted input file, a remote attacker could possibly use this issue to\ncause a denial of service. This issue only affected Ubuntu 20.04 LTS.\n(CVE-2022-43272)\n\nIt was discovered that DCMTK incorrectly handled certain inputs. If a\nuser or an automated system were tricked into opening a certain specially\ncrafted input file, a remote attacker could possibly use this issue to\nexecute arbitrary code. This issue was only addressed in Ubuntu 20.04 LTS\nand Ubuntu 22.04 LTS. (CVE-2024-28130)\n\nIt was discovered that DCMTK incorrectly handled memory when processing an\ninvalid incoming DIMSE message. An attacker could possibly use this issue\nto cause a denial of service. (CVE-2024-34508, CVE-2024-34509)\n","status":"published","published":"2024-09-17T05:18:27Z","modified":"2026-06-25T13:32:28.676541815Z","updated_at":"2026-11-02T16:58:18.876384Z"}]}}