{
  "cveId": "CVE-2022-1834",
  "url": "https://patchblox.com/security/cve/CVE-2022-1834",
  "summary": "CVE-2022-1834 is fixed in 7 products on 2 platforms, first by RLSA-2022:4887, released June 2, 2022. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Mozilla Thunderbird and 1 other: Improper Certificate Validation",
  "description": "When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker\u0027s digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker\u0027s email address was not visible. Because Thunderbird compared the invisible sender address with the signature\u0027s email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003C 91.10.",
  "published": "2022-05-31T17:00:00Z",
  "severity": "Important",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "cwe": "CWE-295: Improper Certificate Validation",
  "epss": 0.00395,
  "epssPercentile": 0.33932,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2022-1834",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Mozilla Thunderbird (en-US)",
      "fixedVersion": "102.0",
      "fix": "Mozilla Thunderbird (en-US) 102.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird-102.0",
      "released": "2022-06-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:91.10.0-1",
      "fix": "DEBIAN-CVE-2022-1834",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-1834",
      "released": "2022-12-22T20:15:13Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:91.10.0-1",
      "fix": "DEBIAN-CVE-2022-1834",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-1834",
      "released": "2022-12-22T20:15:13Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Debian 14",
      "fixedVersion": "1:91.10.0-1",
      "fix": "DEBIAN-CVE-2022-1834",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-1834",
      "released": "2022-12-22T20:15:13Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "RHEL 8",
      "fixedVersion": "0:91.10.0-1.el8_6",
      "fix": "RHSA-2022:4887",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2022-4887",
      "released": "2022-06-03T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "RHEL 9",
      "fixedVersion": "0:91.10.0-1.el9_0",
      "fix": "RHSA-2022:4892",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2022-4892",
      "released": "2022-06-03T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "thunderbird 1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-91.11.0-build2-0ubuntu0.18.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "thunderbird 1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-1-91.11.0-build2-0ubuntu0.20.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "fix": "thunderbird 1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-thunderbird-1-91.11.0-build2-0ubuntu0.22.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "ol 8",
      "fixedVersion": "0:91.10.0-1.0.1.el8_6",
      "fix": "ELSA-2022-4887",
      "url": "https://patchblox.com/security/fix/linux/elsa-2022-4887",
      "released": "2022-06-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "ol 9",
      "fixedVersion": "0:91.10.0-1.0.1.el9_0",
      "fix": "ELSA-2022-4892",
      "url": "https://patchblox.com/security/fix/linux/elsa-2022-4892",
      "released": "2022-06-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "rocky 8",
      "fixedVersion": "0:91.10.0-1.el8_6",
      "fix": "RLSA-2022:4887",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2022-4887",
      "released": "2022-06-02T07:48:48Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "thunderbird-gnome-support 1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-91.11.0-build2-0ubuntu0.18.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "thunderbird-gnome-support 1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-91.11.0-build2-0ubuntu0.20.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-gnome-support",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "fix": "thunderbird-gnome-support 1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-91.11.0-build2-0ubuntu0.22.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "thunderbird-mozsymbols 1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-91.11.0-build2-0ubuntu0.18.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "thunderbird-mozsymbols 1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-91.11.0-build2-0ubuntu0.20.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird-mozsymbols",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "fix": "thunderbird-mozsymbols 1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-91.11.0-build2-0ubuntu0.22.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "xul-ext-calendar-timezones 1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-91.11.0-build2-0ubuntu0.18.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "xul-ext-calendar-timezones 1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-91.11.0-build2-0ubuntu0.20.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-calendar-timezones",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "fix": "xul-ext-calendar-timezones 1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-91.11.0-build2-0ubuntu0.22.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "xul-ext-gdata-provider 1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-91.11.0-build2-0ubuntu0.18.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "xul-ext-gdata-provider 1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-91.11.0-build2-0ubuntu0.20.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-gdata-provider",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "fix": "xul-ext-gdata-provider 1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-91.11.0-build2-0ubuntu0.22.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "xul-ext-lightning 1:91.11.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xul-ext-lightning-1-91.11.0-build2-0ubuntu0.18.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "xul-ext-lightning 1:91.11.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xul-ext-lightning-1-91.11.0-build2-0ubuntu0.20.04.1",
      "released": "2022-07-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xul-ext-lightning",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "fix": "xul-ext-lightning 1:91.11.0\u002Bbuild2-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-xul-ext-lightning-1-91.11.0-build2-0ubuntu0.22.04.1",
      "released": "2022-07-04T17:00:00Z"
    }
  ],
  "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"
  }
}