{
  "cveId": "CVE-2021-41688",
  "url": "https://patchblox.com/security/cve/CVE-2021-41688",
  "summary": "CVE-2021-41688 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2021-41688, released June 28, 2022. It is not reported as exploited. Patch Radar priority: High.",
  "title": "dcmtk: DCMTK through 3.6.6 does not handle memory free properly",
  "description": "DCMTK through 3.6.6 does not handle memory free properly. The object in the program is free but its address is still used in other locations. Sending specific requests to the dcmqrdb program will incur a double free. An attacker can use it to launch a DoS attack.",
  "published": "2022-06-28T06:15:00Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.01838,
  "epssPercentile": 0.79099,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "dcmtk",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "3.6.7-1",
      "fix": "DEBIAN-CVE-2021-41688",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-41688",
      "released": "2022-06-28T13:15:10Z"
    },
    {
      "platform": "linux",
      "product": "dcmtk",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.6.7-1",
      "fix": "DEBIAN-CVE-2021-41688",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-41688",
      "released": "2022-06-28T13:15:10Z"
    },
    {
      "platform": "linux",
      "product": "dcmtk",
      "release": "Debian 14",
      "fixedVersion": "3.6.7-1",
      "fix": "DEBIAN-CVE-2021-41688",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-41688",
      "released": "2022-06-28T13:15:10Z"
    },
    {
      "platform": "linux",
      "product": "dcmtk",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.6.2-3ubuntu0.1~esm1",
      "fix": "dcmtk 3.6.2-3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-dcmtk-3.6.2-3ubuntu0.1-esm1",
      "released": "2022-12-02T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "dcmtk",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.6.4-2.1ubuntu0.1~esm1",
      "fix": "dcmtk 3.6.4-2.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-dcmtk-3.6.4-2.1ubuntu0.1-esm1",
      "released": "2022-12-02T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "dcmtk",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.6.6-5ubuntu0.1~esm1",
      "fix": "dcmtk 3.6.6-5ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-dcmtk-3.6.6-5ubuntu0.1-esm1",
      "released": "2022-12-02T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libdcmtk12",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.6.2-3ubuntu0.1~esm1",
      "fix": "libdcmtk12 3.6.2-3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libdcmtk12-3.6.2-3ubuntu0.1-esm1",
      "released": "2022-12-02T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libdcmtk14",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.6.4-2.1ubuntu0.1~esm1",
      "fix": "libdcmtk14 3.6.4-2.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libdcmtk14-3.6.4-2.1ubuntu0.1-esm1",
      "released": "2022-12-02T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libdcmtk16",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.6.6-5ubuntu0.1~esm1",
      "fix": "libdcmtk16 3.6.6-5ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libdcmtk16-3.6.6-5ubuntu0.1-esm1",
      "released": "2022-12-02T08:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}