gsd-2018-18509
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird < 60.5.1.
Aliases
Aliases
CVE-2018-18509


To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-18509",
    "description": "A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren\u0027t covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird \u003c 60.5.1.",
    "id": "GSD-2018-18509",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-18509.html",
      "https://www.debian.org/security/2019/dsa-4392",
      "https://access.redhat.com/errata/RHSA-2019:1144",
      "https://access.redhat.com/errata/RHSA-2019:0681",
      "https://access.redhat.com/errata/RHSA-2019:0680",
      "https://ubuntu.com/security/CVE-2018-18509",
      "https://advisories.mageia.org/CVE-2018-18509.html",
      "https://security.archlinux.org/CVE-2018-18509",
      "https://packetstormsecurity.com/files/cve/CVE-2018-18509"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-18509"
      ],
      "details": "A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren\u0027t covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird \u003c 60.5.1.",
      "id": "GSD-2018-18509",
      "modified": "2023-12-13T01:22:36.252034Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2018-18509",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Thunderbird",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "60.5.1"
                        }
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                    }
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "S/MIME signature spoofing"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "openSUSE-SU-2019:1162",
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html"
          },
          {
            "name": "https://www.mozilla.org/security/advisories/mfsa2019-06/",
            "refsource": "MISC",
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-06/"
          },
          {
            "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218",
            "refsource": "MISC",
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218"
          },
          {
            "name": "[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2019/04/30/4"
          },
          {
            "name": "20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients",
            "refsource": "FULLDISC",
            "url": "http://seclists.org/fulldisclosure/2019/Apr/38"
          },
          {
            "name": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html",
            "refsource": "MISC",
            "url": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html"
          },
          {
            "name": "RHSA-2019:1144",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2019:1144"
          },
          {
            "name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired",
            "refsource": "MISC",
            "url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired"
          },
          {
            "name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf",
            "refsource": "MISC",
            "url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf"
          }
        ]
      }
    },
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        "ASSIGNER": "security@mozilla.org",
        "ID": "CVE-2018-18509"
      },
      "affects": {
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              "product": {
                "product_data": [
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                    "version": {
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
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                "value": "S/MIME signature spoofing"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-06/"
          },
          {
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "60.5.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
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          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2018-18509"
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-347"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2019-06/",
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              "url": "https://www.mozilla.org/security/advisories/mfsa2019-06/"
            },
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218",
              "refsource": "MISC",
              "tags": [
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                "Permissions Required",
                "Vendor Advisory"
              ],
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218"
            },
            {
              "name": "[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2019/04/30/4"
            },
            {
              "name": "20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients",
              "refsource": "FULLDISC",
              "tags": [
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                "Third Party Advisory"
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              "url": "http://seclists.org/fulldisclosure/2019/Apr/38"
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            {
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              "refsource": "MISC",
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                "VDB Entry"
              ],
              "url": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html"
            },
            {
              "name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf",
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              "refsource": "MISC",
              "tags": [],
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            },
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              "name": "openSUSE-SU-2019:1162",
              "refsource": "SUSE",
              "tags": [],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html"
            },
            {
              "name": "RHSA-2019:1144",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2019:1144"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2019-06-03T19:29Z",
      "publishedDate": "2019-04-26T17:29Z"
    }
  }
}


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