{
  "fix": "RHSA-2023:4955",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2023-4955",
  "summary": "RHSA-2023:4955, released September 4, 2023, fixes 12 CVEs in thunderbird (version 0:102.15.0-1.el9_2). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "thunderbird security update",
  "released": "2023-09-04T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2023-4584, high severity",
  "supported": true,
  "cveCount": 12,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00804,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2023:4955",
  "appliesTo": [
    {
      "product": "thunderbird",
      "productUrl": "https://patchblox.com/security/product/linux/thunderbird",
      "release": "RHEL 9",
      "fixedVersion": "0:102.15.0-1.el9_2",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-4584",
      "url": "https://patchblox.com/security/cve/CVE-2023-4584",
      "title": "Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00804,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4585",
      "url": "https://patchblox.com/security/cve/CVE-2023-4585",
      "title": "Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00774,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4053",
      "url": "https://patchblox.com/security/cve/CVE-2023-4053",
      "title": "Full screen notification obscured by external program",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00768,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4583",
      "url": "https://patchblox.com/security/cve/CVE-2023-4583",
      "title": "Browsing Context potentially not cleared when closing Private Window",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00685,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4574",
      "url": "https://patchblox.com/security/cve/CVE-2023-4574",
      "title": "Memory corruption in IPC ColorPickerShownCallback",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00663,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4051",
      "url": "https://patchblox.com/security/cve/CVE-2023-4051",
      "title": "Full screen notification obscured by file open dialog",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.0066,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4575",
      "url": "https://patchblox.com/security/cve/CVE-2023-4575",
      "title": "Memory corruption in IPC FilePickerShownCallback",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00657,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4577",
      "url": "https://patchblox.com/security/cve/CVE-2023-4577",
      "title": "Memory corruption in JIT UpdateRegExpStatics",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00652,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4573",
      "url": "https://patchblox.com/security/cve/CVE-2023-4573",
      "title": "Memory corruption in IPC CanvasTranslator",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00632,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4578",
      "url": "https://patchblox.com/security/cve/CVE-2023-4578",
      "title": "Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00622,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4581",
      "url": "https://patchblox.com/security/cve/CVE-2023-4581",
      "title": "XLL file extensions were downloadable without warnings",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00574,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4580",
      "url": "https://patchblox.com/security/cve/CVE-2023-4580",
      "title": "Push notifications saved to disk unencrypted",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00422,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}