{
  "cveId": "CVE-2018-12386",
  "url": "https://patchblox.com/security/cve/CVE-2018-12386",
  "summary": "CVE-2018-12386 is fixed in 12 products on 1 platform, first by firefox 62.0.3\u002Bbuild1-0ubuntu0.18.04.1, released October 2, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "firefox: A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and w...",
  "description": "A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR \u0026lt; 60.2.2 and Firefox \u0026lt; 62.0.3.",
  "published": "2018-10-02T17:00:00Z",
  "severity": "Medium",
  "epss": 0.13524,
  "epssPercentile": 0.96474,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "62.0.3\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox 62.0.3\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-62.0.3-build1-0ubuntu0.18.04.1",
      "released": "2018-10-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-globalmenu",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "62.0.3\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox-globalmenu 62.0.3\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-globalmenu-62.0.3-build1-0ubuntu0.18.04.1",
      "released": "2018-10-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "62.0.3\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox-mozsymbols 62.0.3\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-62.0.3-build1-0ubuntu0.18.04.1",
      "released": "2018-10-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-testsuite",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "62.0.3\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox-testsuite 62.0.3\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-testsuite-62.0.3-build1-0ubuntu0.18.04.1",
      "released": "2018-10-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "thunderbird 1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-60.4.0-build2-0ubuntu0.18.04.1",
      "released": "2019-01-23T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-globalmenu",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "thunderbird-globalmenu 1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-globalmenu-1-60.4.0-build2-0ubuntu0.18.04.1",
      "released": "2019-01-23T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "thunderbird-gnome-support 1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-60.4.0-build2-0ubuntu0.18.04.1",
      "released": "2019-01-23T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "thunderbird-mozsymbols 1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-60.4.0-build2-0ubuntu0.18.04.1",
      "released": "2019-01-23T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-testsuite",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "thunderbird-testsuite 1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-testsuite-1-60.4.0-build2-0ubuntu0.18.04.1",
      "released": "2019-01-23T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "xul-ext-calendar-timezones 1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-60.4.0-build2-0ubuntu0.18.04.1",
      "released": "2019-01-23T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "xul-ext-gdata-provider 1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-60.4.0-build2-0ubuntu0.18.04.1",
      "released": "2019-01-23T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "xul-ext-lightning 1:60.4.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-lightning-1-60.4.0-build2-0ubuntu0.18.04.1",
      "released": "2019-01-23T16:00:00Z"
    }
  ],
  "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"
  }
}