Vulnerability-Lookup

ubuntu-cve-2018-9234

Vulnerability from osv_ubuntu

Published

2018-04-03 00:00

Modified

2025-09-08 16:44

Summary

Details

GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.

Severity

7.5 (High)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2018-9234	REPORT
	https://ubuntu.com/security/notices/USN-3675-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2018-9234	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "dirmngr",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg-agent",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg-l10n",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg-utils",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg2",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpg",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpg-agent",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpg-wks-client",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpg-wks-server",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgconf",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgsm",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgv",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgv-static",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgv-win32",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgv2",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "scdaemon",
            "binary_version": "2.2.4-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "gnupg2",
        "purl": "pkg:deb/ubuntu/gnupg2@2.2.4-1ubuntu1.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.4-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.15-1ubuntu8",
        "2.2.4-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.",
  "id": "UBUNTU-CVE-2018-9234",
  "modified": "2025-09-08T16:44:49Z",
  "published": "2018-04-03T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-9234"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3675-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-9234"
    }
  ],
  "related": [
    "USN-3675-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-9234"
  ]
}

CVE-2018-9234 (GCVE-0-2018-9234)

Vulnerability from cvelistv5 – Published: 2018-04-04 00:00 – Updated: 2024-08-05 07:17

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

2 references

URL	Tags
https://dev.gnupg.org/T3844	x_refsource_MISC
https://usn.ubuntu.com/3675-1/	vendor-advisoryx_refsource_UBUNTU

Date Public

2018-04-03 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T07:17:52.005Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://dev.gnupg.org/T3844"
          },
          {
            "name": "USN-3675-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3675-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-04-03T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-06-12T09:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://dev.gnupg.org/T3844"
        },
        {
          "name": "USN-3675-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3675-1/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-9234",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://dev.gnupg.org/T3844",
              "refsource": "MISC",
              "url": "https://dev.gnupg.org/T3844"
            },
            {
              "name": "USN-3675-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3675-1/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-9234",
    "datePublished": "2018-04-04T00:00:00.000Z",
    "dateReserved": "2018-04-03T00:00:00.000Z",
    "dateUpdated": "2024-08-05T07:17:52.005Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

usn-3675-1

Vulnerability from osv_ubuntu

Published

2018-06-11 21:53

Modified

2026-04-27 14:11

Summary

gnupg, gnupg2 vulnerabilities

Details

Marcus Brinkmann discovered that during decryption or verification, GnuPG did not properly filter out terminal sequences when reporting the original filename. An attacker could use this to specially craft a file that would cause an application parsing GnuPG output to incorrectly interpret the status of the cryptographic operation reported by GnuPG. (CVE-2018-12020)

Lance Vick discovered that GnuPG did not enforce configurations where key certification required an offline primary Certify key. An attacker with access to a signing subkey could generate certifications that appeared to be valid. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-9234)

References

URL

Type

	https://ubuntu.com/security/notices/USN-3675-1	ADVISORY
	https://ubuntu.com/security/CVE-2018-9234	REPORT
	https://ubuntu.com/security/CVE-2018-12020	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-12020",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gnupg",
            "binary_version": "1.4.16-1ubuntu2.5"
          },
          {
            "binary_name": "gnupg-curl",
            "binary_version": "1.4.16-1ubuntu2.5"
          },
          {
            "binary_name": "gpgv",
            "binary_version": "1.4.16-1ubuntu2.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "gnupg",
        "purl": "pkg:deb/ubuntu/gnupg@1.4.16-1ubuntu2.5?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.16-1ubuntu2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.14-1ubuntu2",
        "1.4.15-1.1ubuntu1",
        "1.4.15-1.1ubuntu2",
        "1.4.15-2ubuntu1",
        "1.4.16-1ubuntu1",
        "1.4.16-1ubuntu2",
        "1.4.16-1ubuntu2.1",
        "1.4.16-1ubuntu2.3",
        "1.4.16-1ubuntu2.4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-12020",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gnupg",
            "binary_version": "1.4.20-1ubuntu3.2"
          },
          {
            "binary_name": "gnupg-curl",
            "binary_version": "1.4.20-1ubuntu3.2"
          },
          {
            "binary_name": "gpgv",
            "binary_version": "1.4.20-1ubuntu3.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "gnupg",
        "purl": "pkg:deb/ubuntu/gnupg@1.4.20-1ubuntu3.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.20-1ubuntu3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.18-7ubuntu1",
        "1.4.19-6ubuntu1",
        "1.4.20-1ubuntu1",
        "1.4.20-1ubuntu2",
        "1.4.20-1ubuntu3",
        "1.4.20-1ubuntu3.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-9234",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2018-12020",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "dirmngr",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg-agent",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg-l10n",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg-utils",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gnupg2",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpg",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpg-agent",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpg-wks-client",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpg-wks-server",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgconf",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgsm",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgv",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgv-static",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgv-win32",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "gpgv2",
            "binary_version": "2.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "scdaemon",
            "binary_version": "2.2.4-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "gnupg2",
        "purl": "pkg:deb/ubuntu/gnupg2@2.2.4-1ubuntu1.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.4-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.15-1ubuntu8",
        "2.2.4-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Marcus Brinkmann discovered that during decryption or verification,\nGnuPG did not properly filter out terminal sequences when reporting the\noriginal filename. An attacker could use this to specially craft a file\nthat would cause an application parsing GnuPG output to incorrectly\ninterpret the status of the cryptographic operation reported by GnuPG.\n(CVE-2018-12020)\n\nLance Vick discovered that GnuPG did not enforce configurations where\nkey certification required an offline primary Certify key. An attacker\nwith access to a signing subkey could generate certifications that\nappeared to be valid. This issue only affected Ubuntu 18.04 LTS.\n(CVE-2018-9234)\n",
  "id": "USN-3675-1",
  "modified": "2026-04-27T14:11:23Z",
  "published": "2018-06-11T21:53:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3675-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-9234"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-12020"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "gnupg, gnupg2 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2018-9234",
    "UBUNTU-CVE-2018-12020"
  ]
}

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.

Action not permitted

ubuntu-cve-2018-9234

Vulnerability from osv_ubuntu

CVE-2018-9234 (GCVE-0-2018-9234)

usn-3675-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature