{
  "fix": "RHSA-2020:5562",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2020-5562",
  "summary": "RHSA-2020:5562, released December 16, 2020, fixes 7 CVEs in firefox (version 0:78.6.0-1.el8_3). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "firefox security update",
  "released": "2020-12-16T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2020-26971, high severity",
  "supported": true,
  "cveCount": 7,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01899,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2020:5562",
  "appliesTo": [
    {
      "product": "firefox",
      "productUrl": "https://patchblox.com/security/product/linux/firefox",
      "release": "RHEL 8",
      "fixedVersion": "0:78.6.0-1.el8_3",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2020-26971",
      "url": "https://patchblox.com/security/cve/CVE-2020-26971",
      "title": "Firefox ESR and 2 others: Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow\u2026",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01899,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26973",
      "url": "https://patchblox.com/security/cve/CVE-2020-26973",
      "title": "Firefox ESR and 2 others: Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed.",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01623,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-35113",
      "url": "https://patchblox.com/security/cve/CVE-2020-35113",
      "title": "Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox 83 and Firefox ESR 78.5.",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01572,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26974",
      "url": "https://patchblox.com/security/cve/CVE-2020-26974",
      "title": "Firefox ESR and 2 others: When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly\u2026",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01533,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-35111",
      "url": "https://patchblox.com/security/cve/CVE-2020-35111",
      "title": "Firefox ESR and 2 others: When an extension with the proxy permission registered to receive \u003Call_urls\u003E, the proxy.onRequest callback\u2026",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.3,
      "epss": 0.01432,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26978",
      "url": "https://patchblox.com/security/cve/CVE-2020-26978",
      "title": "Firefox ESR and 2 others: Using techniques that built on the slipstream research, a malicious webpage could have exposed both an\u2026",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.1,
      "epss": 0.01334,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-16042",
      "url": "https://patchblox.com/security/cve/CVE-2020-16042",
      "title": "firefox: Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nThis...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.01111,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}