FKIE_CVE-2021-23992

Vulnerability from fkie_nvd - Published: 2021-06-24 14:15 - Updated: 2024-11-21 05:52
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Summary
Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird < 78.9.1.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1666236Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2021-13/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1666236Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2021-13/Release Notes, Vendor Advisory
Impacted products
Vendor Product Version
mozilla thunderbird *
To clipboard 

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              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "717003F7-C1B4-4A52-A10F-13DB37ED1FCE",
              "versionEndExcluding": "78.9.1",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird \u003c 78.9.1."
    },
    {
      "lang": "es",
      "value": "Thunderbird no comprueba si el ID de usuario asociado a una clave OpenPGP presenta una autofirma v\u00e1lida. Un atacante puede crear una versi\u00f3n dise\u00f1ada de una clave OpenPGP, sustituyendo el ID de usuario original o a\u00f1adiendo otro ID de usuario. Si Thunderbird importa y acepta la clave dise\u00f1ada, el usuario de Thunderbird puede concluir falsamente que el falso ID de usuario pertenece al corresponsal. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 78.9.1"
    }
  ],
  "id": "CVE-2021-23992",
  "lastModified": "2024-11-21T05:52:10.067",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
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        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
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          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "version": "3.1"
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        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2021-06-24T14:15:09.227",
  "references": [
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      "source": "security@mozilla.org",
      "tags": [
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  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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