{
  "cveId": "CVE-2018-12359",
  "url": "https://patchblox.com/security/cve/CVE-2018-12359",
  "summary": "CVE-2018-12359 is fixed in 12 products on 1 platform, first by firefox 61.0\u002Bbuild3-0ubuntu0.18.04.1, released June 26, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "firefox: A buffer overflow can occur when rendering canvas content while adjusting the height and width of the canvas element...",
  "description": "A buffer overflow can occur when rendering canvas content while adjusting the height and width of the canvas element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash. This vulnerability affects Thunderbird \u0026lt; 60, Thunderbird \u0026lt; 52.9, Firefox ESR \u0026lt; 60.1, Firefox ESR \u0026lt; 52.9, and Firefox \u0026lt; 61.",
  "published": "2018-06-26T17:00:00Z",
  "severity": "Medium",
  "epss": 0.04647,
  "epssPercentile": 0.91786,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "61.0\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "firefox 61.0\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-61.0-build3-0ubuntu0.18.04.1",
      "released": "2018-06-26T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-globalmenu",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "61.0\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "firefox-globalmenu 61.0\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-globalmenu-61.0-build3-0ubuntu0.18.04.1",
      "released": "2018-06-26T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "61.0\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "firefox-mozsymbols 61.0\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-61.0-build3-0ubuntu0.18.04.1",
      "released": "2018-06-26T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-testsuite",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "61.0\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "firefox-testsuite 61.0\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-testsuite-61.0-build3-0ubuntu0.18.04.1",
      "released": "2018-06-26T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "thunderbird 1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-52.9.1-build3-0ubuntu0.18.04.1",
      "released": "2018-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-globalmenu",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "thunderbird-globalmenu 1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-globalmenu-1-52.9.1-build3-0ubuntu0.18.04.1",
      "released": "2018-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "thunderbird-gnome-support 1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-52.9.1-build3-0ubuntu0.18.04.1",
      "released": "2018-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "thunderbird-mozsymbols 1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-52.9.1-build3-0ubuntu0.18.04.1",
      "released": "2018-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-testsuite",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "thunderbird-testsuite 1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-testsuite-1-52.9.1-build3-0ubuntu0.18.04.1",
      "released": "2018-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "xul-ext-calendar-timezones 1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-52.9.1-build3-0ubuntu0.18.04.1",
      "released": "2018-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "xul-ext-gdata-provider 1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-52.9.1-build3-0ubuntu0.18.04.1",
      "released": "2018-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "fix": "xul-ext-lightning 1:52.9.1\u002Bbuild3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-lightning-1-52.9.1-build3-0ubuntu0.18.04.1",
      "released": "2018-07-04T17:00:00Z"
    }
  ],
  "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"
  }
}