{
  "fix": "libjavascriptcoregtk-4.0-bin 2.42.3-1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libjavascriptcoregtk-4.0-bin-2.42.3-1",
  "summary": "libjavascriptcoregtk-4.0-bin 2.42.3-1, released November 30, 2023, fixes 2 CVEs in libjavascriptcoregtk-4.0-bin. 2 of them are being exploited (CVE-2023-42916); 2 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "linux",
  "type": "package",
  "title": "libjavascriptcoregtk-4.0-bin 2.42.3-1 for Ubuntu 24.04.5 LTS (noble)",
  "released": "2023-11-30T15:15:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2023-42916, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 2,
  "exploitedCveCount": 2,
  "kevCveCount": 2,
  "ransomwareCveCount": 0,
  "maxEpss": 0.17823,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "libjavascriptcoregtk-4.0-bin",
      "productUrl": "https://patchblox.com/security/product/linux/libjavascriptcoregtk-4.0-bin",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.42.3-1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-42916",
      "url": "https://patchblox.com/security/cve/CVE-2023-42916",
      "title": "webkit2gtk: An out-of-bounds read was addressed with improved input validation",
      "priority": "Patch now",
      "severity": "medium",
      "cvss": 6.8,
      "epss": 0.17823,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-42917",
      "url": "https://patchblox.com/security/cve/CVE-2023-42917",
      "title": "webkit2gtk: A memory corruption vulnerability was addressed with improved locking",
      "priority": "Patch now",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.09295,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T19:49:26Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}