{
  "cveId": "CVE-2018-5178",
  "url": "https://patchblox.com/security/cve/CVE-2018-5178",
  "summary": "CVE-2018-5178 is fixed in 8 products on 1 platform, first by thunderbird 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1, released May 22, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "thunderbird: A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts o...",
  "description": "A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur. This vulnerability affects Thunderbird ESR \u0026lt; 52.8, Thunderbird \u0026lt; 52.8, and Firefox ESR \u0026lt; 52.8.",
  "published": "2018-05-09T17:00:00Z",
  "severity": "Low",
  "epss": 0.04893,
  "epssPercentile": 0.92123,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "thunderbird 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-52.8.0-build1-0ubuntu0.18.04.1",
      "released": "2018-05-22T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-globalmenu",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "thunderbird-globalmenu 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-globalmenu-1-52.8.0-build1-0ubuntu0.18.04.1",
      "released": "2018-05-22T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "thunderbird-gnome-support 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-52.8.0-build1-0ubuntu0.18.04.1",
      "released": "2018-05-22T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "thunderbird-mozsymbols 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-52.8.0-build1-0ubuntu0.18.04.1",
      "released": "2018-05-22T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-testsuite",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "thunderbird-testsuite 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-testsuite-1-52.8.0-build1-0ubuntu0.18.04.1",
      "released": "2018-05-22T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "xul-ext-calendar-timezones 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-52.8.0-build1-0ubuntu0.18.04.1",
      "released": "2018-05-22T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "xul-ext-gdata-provider 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-52.8.0-build1-0ubuntu0.18.04.1",
      "released": "2018-05-22T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "xul-ext-lightning 1:52.8.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-lightning-1-52.8.0-build1-0ubuntu0.18.04.1",
      "released": "2018-05-22T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T12:40:37Z"
}