UBUNTU-CVE-2021-29956 (CVE-2021-29956)

Vulnerability from osv_ubuntu – Published: 2021-05-28 00:00 – Updated: 2026-04-22 07:40 – Source website
VLAI
Details

OpenPGP secret keys that were imported using Thunderbird version 78.8.1 up to version 78.10.1 were stored unencrypted on the user's local disk. The master password protection was inactive for those keys. Version 78.10.2 will restore the protection mechanism for newly imported keys, and will automatically protect keys that had been imported using affected Thunderbird versions. This vulnerability affects Thunderbird < 78.10.2.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:78.11.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:78.11.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:78.11.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:78.11.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:78.11.0+build1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:78.11.0+build1-0ubuntu0.18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:78.11.0+build1-0ubuntu0.18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:78.11.0+build1-0ubuntu0.18.04.2"
            }
          ],
          "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",
        "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"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:78.11.0+build1-0ubuntu0.20.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:78.11.0+build1-0ubuntu0.20.04.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:78.11.0+build1-0ubuntu0.20.04.2"
            }
          ],
          "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",
        "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"
      ]
    }
  ],
  "aliases": [],
  "details": "OpenPGP secret keys that were imported using Thunderbird version 78.8.1 up to version 78.10.1 were stored unencrypted on the user\u0027s local disk. The master password protection was inactive for those keys. Version 78.10.2 will restore the protection mechanism for newly imported keys, and will automatically protect keys that had been imported using affected Thunderbird versions. This vulnerability affects Thunderbird \u003c 78.10.2.",
  "id": "UBUNTU-CVE-2021-29956",
  "modified": "2026-04-22T07:40:00Z",
  "published": "2021-05-28T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-29956"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2021-22/#CVE-2021-29956"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4995-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4995-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-29956"
    }
  ],
  "related": [
    "USN-4995-1",
    "USN-4995-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-29956"
  ]
}



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