{
  "cveId": "CVE-2017-7793",
  "url": "https://patchblox.com/security/cve/CVE-2017-7793",
  "summary": "CVE-2017-7793 is fixed in 12 products on 1 platform, first by firefox 56.0\u002Bbuild6-0ubuntu1, released October 1, 2017. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "firefox: A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when sti...",
  "description": "A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox \u0026lt; 56, Firefox ESR \u0026lt; 52.4, and Thunderbird \u0026lt; 52.4.",
  "published": "2017-10-01T17:00:00Z",
  "severity": "Medium",
  "epss": 0.02267,
  "epssPercentile": 0.83109,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "56.0\u002Bbuild6-0ubuntu1",
      "fix": "firefox 56.0\u002Bbuild6-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-56.0-build6-0ubuntu1",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-globalmenu",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "56.0\u002Bbuild6-0ubuntu1",
      "fix": "firefox-globalmenu 56.0\u002Bbuild6-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-globalmenu-56.0-build6-0ubuntu1",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "56.0\u002Bbuild6-0ubuntu1",
      "fix": "firefox-mozsymbols 56.0\u002Bbuild6-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-56.0-build6-0ubuntu1",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-testsuite",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "56.0\u002Bbuild6-0ubuntu1",
      "fix": "firefox-testsuite 56.0\u002Bbuild6-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-testsuite-56.0-build6-0ubuntu1",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.4.0\u002Bbuild1-0ubuntu2",
      "fix": "thunderbird 1:52.4.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-52.4.0-build1-0ubuntu2",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-globalmenu",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.4.0\u002Bbuild1-0ubuntu2",
      "fix": "thunderbird-globalmenu 1:52.4.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-globalmenu-1-52.4.0-build1-0ubuntu2",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.4.0\u002Bbuild1-0ubuntu2",
      "fix": "thunderbird-gnome-support 1:52.4.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-52.4.0-build1-0ubuntu2",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.4.0\u002Bbuild1-0ubuntu2",
      "fix": "thunderbird-mozsymbols 1:52.4.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-52.4.0-build1-0ubuntu2",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-testsuite",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.4.0\u002Bbuild1-0ubuntu2",
      "fix": "thunderbird-testsuite 1:52.4.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-testsuite-1-52.4.0-build1-0ubuntu2",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.4.0\u002Bbuild1-0ubuntu2",
      "fix": "xul-ext-calendar-timezones 1:52.4.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-52.4.0-build1-0ubuntu2",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.4.0\u002Bbuild1-0ubuntu2",
      "fix": "xul-ext-gdata-provider 1:52.4.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-52.4.0-build1-0ubuntu2",
      "released": "2017-10-01T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.4.0\u002Bbuild1-0ubuntu2",
      "fix": "xul-ext-lightning 1:52.4.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-lightning-1-52.4.0-build1-0ubuntu2",
      "released": "2017-10-01T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T06:34:28Z"
}