Vulnerability-Lookup

ubuntu-cve-2018-18439

Vulnerability from osv_ubuntu

Published

2018-11-20 19:29

Modified

2025-10-24 04:47

Summary

Details

DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image.

Severity

9.8 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      negligible

References

URL

Type

	https://ubuntu.com/security/CVE-2018-18439	REPORT
	https://www.openwall.com/lists/oss-security/2018/…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2018-18439	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "u-boot",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          },
          {
            "binary_name": "u-boot-exynos",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          },
          {
            "binary_name": "u-boot-imx",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          },
          {
            "binary_name": "u-boot-omap",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          },
          {
            "binary_name": "u-boot-rockchip",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          },
          {
            "binary_name": "u-boot-rpi",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          },
          {
            "binary_name": "u-boot-sunxi",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          },
          {
            "binary_name": "u-boot-tegra",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          },
          {
            "binary_name": "u-boot-tools",
            "binary_version": "2016.01+dfsg1-2ubuntu5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "u-boot",
        "purl": "pkg:deb/ubuntu/u-boot@2016.01+dfsg1-2ubuntu5?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2015.04+dfsg1-2ubuntu1",
        "2015.10+dfsg1-2",
        "2015.10+dfsg1-3",
        "2015.10+dfsg1-4",
        "2016.01+dfsg1-1",
        "2016.01+dfsg1-1ubuntu1",
        "2016.01+dfsg1-2ubuntu1",
        "2016.01+dfsg1-2ubuntu2",
        "2016.01+dfsg1-2ubuntu3",
        "2016.01+dfsg1-2ubuntu5"
      ]
    }
  ],
  "aliases": [],
  "details": "DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image.",
  "id": "UBUNTU-CVE-2018-18439",
  "modified": "2025-10-24T04:47:15Z",
  "published": "2018-11-20T19:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-18439"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2018/11/02/2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-18439"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "negligible",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-18439"
  ]
}

CVE-2018-18439 (GCVE-0-2018-18439)

Vulnerability from cvelistv5 – Published: 2018-11-20 19:00 – Updated: 2024-08-05 11:08

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

1 reference

URL	Tags
http://www.openwall.com/lists/oss-security/2018/11/02/2	mailing-listx_refsource_MLIST

Date Public

2018-11-02 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:08:21.931Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20181102 CVE-2018-18439, CVE-2018-18440 - U-Boot verified boot bypass vulnerabilities",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2018/11/02/2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-11-02T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-11-20T18:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "[oss-security] 20181102 CVE-2018-18439, CVE-2018-18440 - U-Boot verified boot bypass vulnerabilities",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2018/11/02/2"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-18439",
          "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": "DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[oss-security] 20181102 CVE-2018-18439, CVE-2018-18440 - U-Boot verified boot bypass vulnerabilities",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2018/11/02/2"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-18439",
    "datePublished": "2018-11-20T19:00:00.000Z",
    "dateReserved": "2018-10-17T00:00:00.000Z",
    "dateUpdated": "2024-08-05T11:08:21.931Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-2018-18439

Vulnerability from osv_ubuntu

CVE-2018-18439 (GCVE-0-2018-18439)

Tags

Sightings

Nomenclature