{
  "cveId": "CVE-2020-16042",
  "url": "https://patchblox.com/security/cve/CVE-2020-16042",
  "summary": "CVE-2020-16042 is fixed in 14 products on 1 platform, first by firefox 84.0\u002Bbuild3-0ubuntu0.18.04.1, released December 14, 2020. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "firefox: Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nThis...",
  "description": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nThis update upgrades Firefox to version 78.6.0 ESR.\n\nSecurity Fix(es):\n\n* chromium-browser: Uninitialized Use in V8 (CVE-2020-16042)\n\n* Mozilla: Heap buffer overflow in WebGL (CVE-2020-26971)\n\n* Mozilla: CSS Sanitizer performed incorrect sanitization (CVE-2020-26973)\n\n* Mozilla: Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free (CVE-2020-26974)\n\n* Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6 (CVE-2020-35113)\n\n* Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2020-26978)\n\n* Mozilla: The proxy.onRequest API did not catch view-source URLs (CVE-2020-35111)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2020-12-14T16:00:00Z",
  "severity": "Important",
  "cvss": 6.5,
  "epss": 0.01111,
  "epssPercentile": 0.66143,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "chromium-browser",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "89.0.4389.82-0ubuntu0.18.04.1",
      "fix": "chromium-browser 89.0.4389.82-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-browser-89.0.4389.82-0ubuntu0.18.04.1",
      "released": "2023-01-02T15:15:00Z"
    },
    {
      "platform": "linux",
      "product": "chromium-browser-l10n",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "89.0.4389.82-0ubuntu0.18.04.1",
      "fix": "chromium-browser-l10n 89.0.4389.82-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-browser-l10n-89.0.4389.82-0ubuntu0.18.04.1",
      "released": "2023-01-02T15:15:00Z"
    },
    {
      "platform": "linux",
      "product": "chromium-chromedriver",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "89.0.4389.82-0ubuntu0.18.04.1",
      "fix": "chromium-chromedriver 89.0.4389.82-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-chromedriver-89.0.4389.82-0ubuntu0.18.04.1",
      "released": "2023-01-02T15:15:00Z"
    },
    {
      "platform": "linux",
      "product": "chromium-codecs-ffmpeg",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "89.0.4389.82-0ubuntu0.18.04.1",
      "fix": "chromium-codecs-ffmpeg 89.0.4389.82-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-89.0.4389.82-0ubuntu0.18.04.1",
      "released": "2023-01-02T15:15:00Z"
    },
    {
      "platform": "linux",
      "product": "chromium-codecs-ffmpeg-extra",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "89.0.4389.82-0ubuntu0.18.04.1",
      "fix": "chromium-codecs-ffmpeg-extra 89.0.4389.82-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-extra-89.0.4389.82-0ubuntu0.18.04.1",
      "released": "2023-01-02T15:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "RHEL 8",
      "fixedVersion": "0:78.6.0-1.el8_3",
      "fix": "RHSA-2020:5562",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-5562",
      "released": "2020-12-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "84.0\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "firefox 84.0\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-84.0-build3-0ubuntu0.18.04.1",
      "released": "2020-12-14T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "84.0\u002Bbuild3-0ubuntu0.20.04.1",
      "fix": "firefox 84.0\u002Bbuild3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-84.0-build3-0ubuntu0.20.04.1",
      "released": "2020-12-14T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "ol 8",
      "fixedVersion": "0:78.6.0-1.0.1.el8_3",
      "fix": "ELSA-2020-5562-1",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-5562-1",
      "released": "2020-12-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "84.0\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "firefox-geckodriver 84.0\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-geckodriver-84.0-build3-0ubuntu0.18.04.1",
      "released": "2020-12-14T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "84.0\u002Bbuild3-0ubuntu0.20.04.1",
      "fix": "firefox-geckodriver 84.0\u002Bbuild3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-geckodriver-84.0-build3-0ubuntu0.20.04.1",
      "released": "2020-12-14T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "84.0\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "firefox-mozsymbols 84.0\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-84.0-build3-0ubuntu0.18.04.1",
      "released": "2020-12-14T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "84.0\u002Bbuild3-0ubuntu0.20.04.1",
      "fix": "firefox-mozsymbols 84.0\u002Bbuild3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-mozsymbols-84.0-build3-0ubuntu0.20.04.1",
      "released": "2020-12-14T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "RHEL 8",
      "fixedVersion": "0:78.6.0-1.el8_3",
      "fix": "RHSA-2020:5624",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-5624",
      "released": "2020-12-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "thunderbird 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-78.8.1-build1-0ubuntu0.18.04.1",
      "released": "2021-04-22T07:54:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "thunderbird 1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-1-78.7.1-build1-0ubuntu0.20.04.1",
      "released": "2021-01-25T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "ol 8",
      "fixedVersion": "0:78.6.0-1.0.1.el8_3",
      "fix": "ELSA-2020-5624-1",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-5624-1",
      "released": "2020-12-18T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "thunderbird-gnome-support 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-78.8.1-build1-0ubuntu0.18.04.1",
      "released": "2021-04-22T07:54:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "thunderbird-gnome-support 1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-78.7.1-build1-0ubuntu0.20.04.1",
      "released": "2021-01-25T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "thunderbird-mozsymbols 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-78.8.1-build1-0ubuntu0.18.04.1",
      "released": "2021-04-22T07:54:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "thunderbird-mozsymbols 1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-78.7.1-build1-0ubuntu0.20.04.1",
      "released": "2021-01-25T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "xul-ext-calendar-timezones 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-78.8.1-build1-0ubuntu0.18.04.1",
      "released": "2021-04-22T07:54:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "xul-ext-calendar-timezones 1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-78.7.1-build1-0ubuntu0.20.04.1",
      "released": "2021-01-25T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "xul-ext-gdata-provider 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-78.8.1-build1-0ubuntu0.18.04.1",
      "released": "2021-04-22T07:54:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "xul-ext-gdata-provider 1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-78.7.1-build1-0ubuntu0.20.04.1",
      "released": "2021-01-25T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "xul-ext-lightning 1:78.8.1\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-lightning-1-78.8.1-build1-0ubuntu0.18.04.1",
      "released": "2021-04-22T07:54:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "xul-ext-lightning 1:78.7.1\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-lightning-1-78.7.1-build1-0ubuntu0.20.04.1",
      "released": "2021-01-25T16:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}