{
  "cveId": "CVE-2020-6463",
  "url": "https://patchblox.com/security/cve/CVE-2020-6463",
  "summary": "CVE-2020-6463 is fixed in 14 products on 1 platform, first by chromium-browser 81.0.4044.122-0ubuntu0.18.04.1, released June 3, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "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 68.11.0 ESR.\n\nSecurity Fix(es):\n\n* chromium-browser: Use after free in ANGLE (CVE-2020-6463)\n\n* chromium-browser: Inappropriate implementation in WebRTC (CVE-2020-6514)\n\n* Mozilla: Potential leak of redirect targets when loading scripts in a worker (CVE-2020-15652)\n\n* Mozilla: Memory safety bugs fixed in Firefox 79 and Firefox ESR 68.11 (CVE-2020-15659)\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": "2020-05-20T21:15:00Z",
  "severity": "Important",
  "cvss": 8.8,
  "epss": 0.03265,
  "epssPercentile": 0.8846,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "chromium-browser",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "81.0.4044.122-0ubuntu0.18.04.1",
      "fix": "chromium-browser 81.0.4044.122-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-browser-81.0.4044.122-0ubuntu0.18.04.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "chromium-browser-l10n",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "81.0.4044.122-0ubuntu0.18.04.1",
      "fix": "chromium-browser-l10n 81.0.4044.122-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-browser-l10n-81.0.4044.122-0ubuntu0.18.04.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "chromium-chromedriver",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "81.0.4044.122-0ubuntu0.18.04.1",
      "fix": "chromium-chromedriver 81.0.4044.122-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-chromedriver-81.0.4044.122-0ubuntu0.18.04.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "chromium-codecs-ffmpeg",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "81.0.4044.122-0ubuntu0.18.04.1",
      "fix": "chromium-codecs-ffmpeg 81.0.4044.122-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-81.0.4044.122-0ubuntu0.18.04.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "chromium-codecs-ffmpeg-extra",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "81.0.4044.122-0ubuntu0.18.04.1",
      "fix": "chromium-codecs-ffmpeg-extra 81.0.4044.122-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-extra-81.0.4044.122-0ubuntu0.18.04.1",
      "released": "2020-06-03T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "RHEL 8",
      "fixedVersion": "0:68.11.0-1.el8_2",
      "fix": "RHSA-2020:3241",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-3241",
      "released": "2020-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "79.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox 79.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-79.0-build1-0ubuntu0.18.04.1",
      "released": "2020-08-10T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "79.0\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "firefox 79.0\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-79.0-build1-0ubuntu0.20.04.1",
      "released": "2020-08-10T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "ol 8",
      "fixedVersion": "0:68.11.0-1.0.1.el8_2",
      "fix": "ELSA-2020-3241",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-3241",
      "released": "2020-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "79.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox-geckodriver 79.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-geckodriver-79.0-build1-0ubuntu0.18.04.1",
      "released": "2020-08-10T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "79.0\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "firefox-geckodriver 79.0\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-geckodriver-79.0-build1-0ubuntu0.20.04.1",
      "released": "2020-08-10T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "79.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox-mozsymbols 79.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-79.0-build1-0ubuntu0.18.04.1",
      "released": "2020-08-10T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "79.0\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "firefox-mozsymbols 79.0\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-mozsymbols-79.0-build1-0ubuntu0.20.04.1",
      "released": "2020-08-10T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "RHEL 8",
      "fixedVersion": "0:68.11.0-1.el8_2",
      "fix": "RHSA-2020:3341",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-3341",
      "released": "2020-08-06T00:00:00Z"
    },
    {
      "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": "0:68.11.0-1.0.1.el8_2",
      "fix": "ELSA-2020-3341",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-3341",
      "released": "2020-08-06T00:00:00Z"
    },
    {
      "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)",
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      "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)",
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      "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"
    },
    {
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      "product": "xul-ext-lightning",
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      "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": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}