{
  "cveId": "CVE-2018-20969",
  "url": "https://patchblox.com/security/cve/CVE-2018-20969",
  "summary": "CVE-2018-20969 is fixed in patch on 1 platform, first by patch 2.7.6-2ubuntu1.1, released August 15, 2019. It is not reported as exploited. Patch Radar priority: High.",
  "title": "patch: The patch program applies diff files to originals",
  "description": "The patch program applies diff files to originals. The diff command is used to compare an original to a changed file. Diff lists the changes made to the file. A person who has the original file can then use the patch command with the diff file to add the changes to their original file (patching the file).\n\nSecurity Fix(es):\n\n* patch: do_ed_script in pch.c does not block strings beginning with a ! character (CVE-2018-20969)\n\n* patch: OS shell command injection when processing crafted patch files (CVE-2019-13638)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2019-08-15T21:15:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "epss": 0.02684,
  "epssPercentile": 0.85901,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "patch",
      "release": "RHEL 8",
      "fixedVersion": "0:2.7.6-9.el8_0",
      "fix": "RHSA-2019:2798",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-2798",
      "released": "2019-09-19T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "patch",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.7.6-2ubuntu1.1",
      "fix": "patch 2.7.6-2ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-patch-2.7.6-2ubuntu1.1",
      "released": "2019-08-15T21:15:00Z"
    },
    {
      "platform": "linux",
      "product": "patch",
      "release": "ol 8",
      "fixedVersion": "0:2.7.6-9.el8_0",
      "fix": "ELSA-2019-2798",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-2798",
      "released": "2019-09-19T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T12:40:37Z"
}