{
  "cveId": "CVE-2020-12397",
  "url": "https://patchblox.com/security/cve/CVE-2020-12397",
  "summary": "CVE-2020-12397 is fixed in 6 products on 1 platform, first by thunderbird 1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2, released May 6, 2020. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "thunderbird: Mozilla Thunderbird is a standalone mail and newsgroup client.\n\nThis update upgrades Thunderbird to version 68.8.0....",
  "description": "Mozilla Thunderbird is a standalone mail and newsgroup client.\n\nThis update upgrades Thunderbird to version 68.8.0.\n\nSecurity Fix(es):\n\n* Mozilla: Use-after-free during worker shutdown (CVE-2020-12387)\n\n* Mozilla: Memory safety bugs fixed in Firefox 76 and Firefox ESR 68.8 (CVE-2020-12395)\n\n* usrsctp: Buffer overflow in AUTH chunk input validation (CVE-2020-6831)\n\n* Mozilla: Arbitrary local file access with \u0027Copy as cURL\u0027 (CVE-2020-12392)\n\n* Mozilla: Sender Email Address Spoofing using encoded Unicode characters (CVE-2020-12397)\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": "2020-05-06T17:00:00Z",
  "severity": "Critical",
  "cvss": 4.3,
  "epss": 0.00612,
  "epssPercentile": 0.49583,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "RHEL 8",
      "fixedVersion": "0:68.8.0-1.el8_2",
      "fix": "RHSA-2020:2046",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-2046",
      "released": "2020-05-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "thunderbird 1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-68.8.0-build2-0ubuntu0.18.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "fix": "thunderbird 1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-1-68.8.0-build2-0ubuntu0.20.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "ol 8",
      "fixedVersion": "0:68.8.0-1.0.1.el8_2",
      "fix": "ELSA-2020-2046",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-2046",
      "released": "2020-05-12T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "thunderbird-gnome-support 1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-68.8.0-build2-0ubuntu0.18.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "fix": "thunderbird-gnome-support 1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-68.8.0-build2-0ubuntu0.20.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "thunderbird-mozsymbols 1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-68.8.0-build2-0ubuntu0.18.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "fix": "thunderbird-mozsymbols 1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-68.8.0-build2-0ubuntu0.20.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "xul-ext-calendar-timezones 1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-68.8.0-build2-0ubuntu0.18.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "fix": "xul-ext-calendar-timezones 1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-68.8.0-build2-0ubuntu0.20.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "xul-ext-gdata-provider 1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-68.8.0-build2-0ubuntu0.18.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "fix": "xul-ext-gdata-provider 1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-68.8.0-build2-0ubuntu0.20.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "fix": "xul-ext-lightning 1:68.8.0\u002Bbuild2-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-lightning-1-68.8.0-build2-0ubuntu0.18.04.2",
      "released": "2020-05-06T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "fix": "xul-ext-lightning 1:68.8.0\u002Bbuild2-0ubuntu0.20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-lightning-1-68.8.0-build2-0ubuntu0.20.04.2",
      "released": "2020-05-06T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}