{
  "cveId": "CVE-2018-19797",
  "url": "https://patchblox.com/security/cve/CVE-2018-19797",
  "summary": "CVE-2018-19797 is fixed in libsass0 on 1 platform by libsass0 3.4.8-1ubuntu0.1~esm1 (version 3.4.8-1ubuntu0.1~esm1), released January 14, 2019. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libsass0: In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Selector_List::populate_extends in SharedPtr.hpp (...",
  "description": "In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Selector_List::populate_extends in SharedPtr.hpp (used by ast.cpp and ast_selectors.cpp) may cause a Denial of Service (application crash) via a crafted sass input file.",
  "published": "2018-12-02T22:29:00Z",
  "severity": "Medium",
  "epss": 0.01844,
  "epssPercentile": 0.79158,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libsass0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.4.8-1ubuntu0.1~esm1",
      "fix": "libsass0 3.4.8-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libsass0-3.4.8-1ubuntu0.1-esm1",
      "released": "2019-01-14T14:29:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}