vuln-ubuntu/data/osv/usn/USN-5168-2.json

{
  "schema_version": "1.7.0",
  "id": "USN-5168-2",
  "summary": "thunderbird vulnerability",
  "details": "Tavis Ormandy discovered that NSS, included with Thunderbird, incorrectly\nhandled verifying DSA/RSA-PSS signatures. A remote attacker could use this\nissue to cause Thunderbird to crash, resulting in a denial of service, or\npossibly execute arbitrary code.\n",
  "aliases": [],
  "upstream": [
    "UBUNTU-CVE-2021-43527"
  ],
  "related": [],
  "published": "2021-12-01T16:45:31Z",
  "modified": "2026-04-22T07:37:00Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:78.14.0+build1-0ubuntu0.18.04.2?arch=source&distro=bionic"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:78.14.0+build1-0ubuntu0.18.04.2"
            }
          ]
        }
      ],
      "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",
        "1:68.8.0+build2-0ubuntu0.18.04.2",
        "1:68.10.0+build1-0ubuntu0.18.04.1",
        "1:78.8.1+build1-0ubuntu0.18.04.1",
        "1:78.11.0+build1-0ubuntu0.18.04.2",
        "1:78.13.0+build1-0ubuntu0.18.04.1",
        "1:78.14.0+build1-0ubuntu0.18.04.1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:78.14.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:78.14.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:78.14.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:78.14.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:78.14.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:78.14.0+build1-0ubuntu0.18.04.2"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:18.04:LTS",
          "cves": [
            {
              "id": "CVE-2021-43527",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "high"
                }
              ]
            }
          ]
        }
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:78.14.0+build1-0ubuntu0.20.04.2?arch=source&distro=focal"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:78.14.0+build1-0ubuntu0.20.04.2"
            }
          ]
        }
      ],
      "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",
        "1:68.8.0+build2-0ubuntu0.20.04.2",
        "1:68.10.0+build1-0ubuntu0.20.04.1",
        "1:78.7.1+build1-0ubuntu0.20.04.1",
        "1:78.8.1+build1-0ubuntu0.20.04.1",
        "1:78.11.0+build1-0ubuntu0.20.04.2",
        "1:78.13.0+build1-0ubuntu0.20.04.2",
        "1:78.14.0+build1-0ubuntu0.20.04.1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:78.14.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:78.14.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:78.14.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:78.14.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:78.14.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:78.14.0+build1-0ubuntu0.20.04.2"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:20.04:LTS",
          "cves": [
            {
              "id": "CVE-2021-43527",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "high"
                }
              ]
            }
          ]
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5168-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-43527"
    }
  ]
}