{
  "fix": "libjavascriptcoregtk-4.0-bin 2.40.4-0ubuntu0.22.04.1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.0-bin-2.40.4-0ubuntu0.22.04.1",
  "summary": "libjavascriptcoregtk-4.0-bin 2.40.4-0ubuntu0.22.04.1, released September 27, 2023, fixes 9 CVEs in libjavascriptcoregtk-4.0-bin. 5 of them are being exploited (CVE-2023-32439); 5 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "linux",
  "type": "package",
  "title": "libjavascriptcoregtk-4.0-bin 2.40.4-0ubuntu0.22.04.1 for Ubuntu 22.04.1 LTS (jammy)",
  "released": "2023-09-27T08:18:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2023-32439, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 9,
  "exploitedCveCount": 5,
  "kevCveCount": 5,
  "ransomwareCveCount": 0,
  "maxEpss": 0.23968,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "libjavascriptcoregtk-4.0-bin",
      "productUrl": "https://patchblox.com/security/product/linux/libjavascriptcoregtk-4.0-bin",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.40.4-0ubuntu0.22.04.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-32439",
      "url": "https://patchblox.com/security/cve/CVE-2023-32439",
      "title": "webkit2gtk: A type confusion issue was addressed with improved checks",
      "priority": "Patch now",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.23968,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-32435",
      "url": "https://patchblox.com/security/cve/CVE-2023-32435",
      "title": "webkit2gtk: A memory corruption issue was addressed with improved state management",
      "priority": "Patch now",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.22951,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-37450",
      "url": "https://patchblox.com/security/cve/CVE-2023-37450",
      "title": "webkit2gtk: The issue was addressed with improved checks",
      "priority": "Patch now",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.1895,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28204",
      "url": "https://patchblox.com/security/cve/CVE-2023-28204",
      "title": "webkit2gtk: An out-of-bounds read was addressed with improved input validation",
      "priority": "Patch now",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.14292,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-32373",
      "url": "https://patchblox.com/security/cve/CVE-2023-32373",
      "title": "webkit2gtk: A use-after-free issue was addressed with improved memory management",
      "priority": "Patch now",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.12172,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-35074",
      "url": "https://patchblox.com/security/cve/CVE-2023-35074",
      "title": "webkit2gtk: The issue was addressed with improved memory handling",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.01584,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-32393",
      "url": "https://patchblox.com/security/cve/CVE-2023-32393",
      "title": "webkit2gtk: The issue was addressed with improved memory handling",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00952,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28198",
      "url": "https://patchblox.com/security/cve/CVE-2023-28198",
      "title": "webkit2gtk: A use-after-free issue was addressed with improved memory management",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00926,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-32370",
      "url": "https://patchblox.com/security/cve/CVE-2023-32370",
      "title": "webkit2gtk: A logic issue was addressed with improved validation",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.3,
      "epss": 0.00787,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-12T19:57:06Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}