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FKIE_CVE-2018-12373

Vulnerability from fkie_nvd - Published: 2018-10-18 13:29 - Updated: 2026-06-17 01:37
Severity
6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Summary
dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward. This vulnerability affects Thunderbird < 52.9.
References
security@mozilla.orghttp://www.securityfocus.com/bid/104613Third Party Advisory, VDB Entry
security@mozilla.orghttps://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
security@mozilla.orghttps://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1464056Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1464667Issue Tracking, Vendor Advisory
security@mozilla.orghttps://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
security@mozilla.orghttps://security.gentoo.org/glsa/201811-13Third Party Advisory
security@mozilla.orghttps://usn.ubuntu.com/3714-1/Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2018/dsa-4244Third Party Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/104613Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1464056Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1464667Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201811-13Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3714-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4244Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
Impacted products
Vendor Product Version
mozilla thunderbird *
redhat enterprise_linux 6.0
redhat enterprise_linux 7.0
redhat enterprise_linux 7.5
redhat enterprise_linux 7.6
redhat enterprise_linux_desktop 6.0
redhat enterprise_linux_desktop 7.0
redhat enterprise_linux_server 6.0
redhat enterprise_linux_server 7.0
redhat enterprise_linux_workstation 6.0
redhat enterprise_linux_workstation 7.0
debian debian_linux 8.0
debian debian_linux 9.0
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 17.10
canonical ubuntu_linux 18.04
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "52.9",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@mozilla.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "02E2E611-E047-4536-957A-2D57D0774D31",
              "versionEndExcluding": "52.9.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*",
              "matchCriteriaId": "4EB48767-F095-444F-9E05-D9AC345AB803",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "5F6FA12B-504C-4DBF-A32E-0548557AA2ED",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE249E1B-A1FD-4E08-AA71-A0E1F10FFE97",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "33C068A4-3780-4EAB-A937-6082DF847564",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "9BBCD86A-E6C7-4444-9D74-F861084090F0",
              "vulnerable": true
            },
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              "matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318",
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            },
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          ],
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              "vulnerable": true
            },
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              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
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              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward. This vulnerability affects Thunderbird \u003c 52.9."
    },
    {
      "lang": "es",
      "value": "Las partes S/MIME descifradas ocultas con CSS o la etiqueta HTML en texto plano pueden filtrar texto plano cuando se incluyen en una respuesta/reenv\u00edo HTML. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 52.9."
    }
  ],
  "id": "CVE-2018-12373",
  "lastModified": "2026-06-17T01:37:38.940",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-10-18T13:29:04.103",
  "references": [
    {
      "source": "security@mozilla.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/104613"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
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      ],
      "url": "https://access.redhat.com/errata/RHSA-2018:2251"
    },
    {
      "source": "security@mozilla.org",
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    },
    {
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    },
    {
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  ],
  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.