usn-4373-1
Vulnerability from osv_ubuntu
Published
2020-05-26 14:33
Modified
2026-04-22 07:36
Summary
thunderbird vulnerabilities
Details

Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, or execute arbitrary code. (CVE-2020-6831, CVE-2020-12387, CVE-2020-12395)

It was discovered that the Devtools’ ‘Copy as cURL’ feature did not properly escape the HTTP POST data of a request. If a user were tricked in to using the ‘Copy as cURL’ feature to copy and paste a command with specially crafted data in to a terminal, an attacker could potentially exploit this to obtain sensitive information from local files. (CVE-2020-12392)

It was discovered that Thunderbird did not correctly handle Unicode whitespace characters within the From email header. An attacker could potentially exploit this to spoof the sender email address that Thunderbird displays. (CVE-2020-12397)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-6831",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12387",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12392",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12395",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12397",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:68.8.0+build2-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:68.8.0+build2-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:68.8.0+build2-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:68.8.0+build2-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:68.8.0+build2-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:68.8.0+build2-0ubuntu0.16.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:68.8.0+build2-0ubuntu0.16.04.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:68.8.0+build2-0ubuntu0.16.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:38.3.0+build1-0ubuntu2",
        "1:38.5.1+build2-0ubuntu1",
        "1:38.6.0+build1-0ubuntu1",
        "1:38.7.2+build1-0ubuntu0.16.04.1",
        "1:38.8.0+build1-0ubuntu0.16.04.1",
        "1:45.2.0+build1-0ubuntu0.16.04.1",
        "1:45.3.0+build1-0ubuntu0.16.04.2",
        "1:45.4.0+build1-0ubuntu0.16.04.1",
        "1:45.5.1+build1-0ubuntu0.16.04.1",
        "1:45.7.0+build1-0ubuntu0.16.04.1",
        "1:45.8.0+build1-0ubuntu0.16.04.1",
        "1:52.1.1+build1-0ubuntu0.16.04.1",
        "1:52.2.1+build1-0ubuntu0.16.04.1",
        "1:52.3.0+build1-0ubuntu0.16.04.1",
        "1:52.4.0+build1-0ubuntu0.16.04.2",
        "1:52.5.0+build1-0ubuntu0.16.04.1",
        "1:52.6.0+build1-0ubuntu0.16.04.1",
        "1:52.7.0+build1-0ubuntu0.16.04.1",
        "1:52.8.0+build1-0ubuntu0.16.04.1",
        "1:52.9.1+build3-0ubuntu0.16.04.1",
        "1:60.2.1+build1-0ubuntu0.16.04.4",
        "1:60.4.0+build2-0ubuntu0.16.04.1",
        "1:60.5.1+build2-0ubuntu0.16.04.1",
        "1:60.6.1+build2-0ubuntu0.16.04.1",
        "1:60.7.0+build1-0ubuntu0.16.04.1",
        "1:60.7.1+build1-0ubuntu0.16.04.1",
        "1:60.7.2+build2-0ubuntu0.16.04.1",
        "1:60.8.0+build1-0ubuntu0.16.04.2",
        "1:60.9.0+build1-0ubuntu0.16.04.2",
        "1:60.9.1+build1-0ubuntu0.16.04.1",
        "1:68.7.0+build1-0ubuntu0.16.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-6831",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12387",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12392",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12395",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12397",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:68.8.0+build2-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:68.8.0+build2-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:68.8.0+build2-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:68.8.0+build2-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:68.8.0+build2-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:68.8.0+build2-0ubuntu0.18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:68.8.0+build2-0ubuntu0.18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:68.8.0+build2-0ubuntu0.18.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:52.4.0+build1-0ubuntu2",
        "1:52.6.0+build1-0ubuntu1",
        "1:52.7.0+build1-0ubuntu1",
        "1:52.8.0+build1-0ubuntu0.18.04.1",
        "1:52.9.1+build3-0ubuntu0.18.04.1",
        "1:60.2.1+build1-0ubuntu0.18.04.2",
        "1:60.4.0+build2-0ubuntu0.18.04.1",
        "1:60.5.1+build2-0ubuntu0.18.04.1",
        "1:60.6.1+build2-0ubuntu0.18.04.1",
        "1:60.7.0+build1-0ubuntu0.18.04.1",
        "1:60.7.1+build1-0ubuntu0.18.04.1",
        "1:60.7.2+build2-0ubuntu0.18.04.1",
        "1:60.8.0+build1-0ubuntu0.18.04.1",
        "1:60.9.0+build1-0ubuntu0.18.04.1",
        "1:68.2.1+build1-0ubuntu0.18.04.1",
        "1:68.2.2+build1-0ubuntu0.18.04.1",
        "1:68.4.1+build1-0ubuntu0.18.04.1",
        "1:68.7.0+build1-0ubuntu0.18.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-6831",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12387",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12392",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12395",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12397",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:68.8.0+build2-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:68.8.0+build2-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:68.8.0+build2-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:68.8.0+build2-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:68.8.0+build2-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:68.8.0+build2-0ubuntu0.20.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:68.8.0+build2-0ubuntu0.20.04.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:68.8.0+build2-0ubuntu0.20.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:68.1.2+build1-0ubuntu1",
        "1:68.1.2+build1-0ubuntu2",
        "1:68.2.1+build1-0ubuntu1",
        "1:68.2.2+build1-0ubuntu1",
        "1:68.3.0+build2-0ubuntu1",
        "1:68.3.1+build1-0ubuntu2",
        "1:68.4.1+build1-0ubuntu1",
        "1:68.4.2+build2-0ubuntu1",
        "1:68.5.0+build1-0ubuntu1",
        "1:68.6.0+build2-0ubuntu1",
        "1:68.7.0+build1-0ubuntu1",
        "1:68.7.0+build1-0ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "Multiple security issues were discovered in Thunderbird. If a user were\ntricked in to opening a specially crafted website in a browsing context,\nan attacker could potentially exploit these to cause a denial of service,\nor execute arbitrary code. (CVE-2020-6831, CVE-2020-12387, CVE-2020-12395)\n\nIt was discovered that the Devtools\u2019 \u2018Copy as cURL\u2019 feature did not\nproperly escape the HTTP POST data of a request. If a user were tricked\nin to using the \u2018Copy as cURL\u2019 feature to copy and paste a command with\nspecially crafted data in to a terminal, an attacker could potentially\nexploit this to obtain sensitive information from local files.\n(CVE-2020-12392)\n\nIt was discovered that Thunderbird did not correctly handle Unicode\nwhitespace characters within the From email header. An attacker could\npotentially exploit this to spoof the sender email address that\nThunderbird displays. (CVE-2020-12397)\n",
  "id": "USN-4373-1",
  "modified": "2026-04-22T07:36:38Z",
  "published": "2020-05-26T14:33:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4373-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6831"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12387"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12392"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12395"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12397"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "thunderbird vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-6831",
    "UBUNTU-CVE-2020-12387",
    "UBUNTU-CVE-2020-12392",
    "UBUNTU-CVE-2020-12395",
    "UBUNTU-CVE-2020-12397"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.