{
  "cveId": "CVE-2020-18378",
  "url": "https://patchblox.com/security/cve/CVE-2020-18378",
  "summary": "CVE-2020-18378 is fixed in binaryen on 1 platform, first by DEBIAN-CVE-2020-18378, released August 22, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "binaryen: A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1....",
  "description": "A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-as.",
  "published": "2023-08-22T19:15:55Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
  "epss": 0.0061,
  "epssPercentile": 0.49477,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "binaryen",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "68-1",
      "fix": "DEBIAN-CVE-2020-18378",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-18378",
      "released": "2023-08-22T19:15:55Z"
    },
    {
      "platform": "linux",
      "product": "binaryen",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "68-1",
      "fix": "DEBIAN-CVE-2020-18378",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-18378",
      "released": "2023-08-22T19:15:55Z"
    },
    {
      "platform": "linux",
      "product": "binaryen",
      "release": "Debian 14",
      "fixedVersion": "68-1",
      "fix": "DEBIAN-CVE-2020-18378",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-18378",
      "released": "2023-08-22T19:15:55Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}