csaf_certbund - wid-sec-w-2023-0310

wid-sec-w-2023-0310

Vulnerability from csaf_certbund

Published

2023-02-08 23:00

Modified

2023-10-08 22:00

Summary

Heimdal: Schwachstelle ermöglicht Denial of Service

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Heimdal ist eine Kerberos 5 Implementierung. Ubuntu Linux ist die Linux Distribution des Herstellers Canonical.

Angriff

Ein Angreifer kann eine Schwachstelle in Heimdal und Ubuntu Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.

Betroffene Betriebssysteme

- UNIX - Linux - Windows - Sonstiges

JSON

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{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Heimdal ist eine Kerberos 5 Implementierung.\r\nUbuntu Linux ist die Linux Distribution des Herstellers Canonical.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann eine Schwachstelle in Heimdal und Ubuntu Linux ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- Linux\n- Windows\n- Sonstiges",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-0310 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-0310.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-0310 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-0310"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202310-06 vom 2023-10-08",
        "url": "https://security.gentoo.org/glsa/202310-06"
      },
      {
        "category": "external",
        "summary": "OSS Seclist.org Vulnerability Description vom 2023-02-08",
        "url": "https://www.openwall.com/lists/oss-security/2023/02/08/1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Advisory vom 2023-02-08",
        "url": "https://ubuntu.com/security/notices/USN-5849-1"
      }
    ],
    "source_lang": "en-US",
    "title": "Heimdal: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2023-10-08T22:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T17:13:24.249+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2023-0310",
      "initial_release_date": "2023-02-08T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-02-08T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-10-08T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Gentoo aufgenommen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T012167",
              "product_identification_helper": {
                "cpe": "cpe:/o:gentoo:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Gentoo"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Heimdal 7.1",
            "product": {
              "name": "Open Source Heimdal 7.1",
              "product_id": "T026205",
              "product_identification_helper": {
                "cpe": "cpe:/a:heimdal:heimdal:7.1"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Ubuntu Linux 20.04 LTS",
                "product": {
                  "name": "Ubuntu Linux 20.04 LTS",
                  "product_id": "T000126",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:-"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Ubuntu Linux 18.04 LTS",
                "product": {
                  "name": "Ubuntu Linux 18.04 LTS",
                  "product_id": "T015944",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:ubuntu_18.04_lts"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Ubuntu Linux 14.04 ESM",
                "product": {
                  "name": "Ubuntu Linux 14.04 ESM",
                  "product_id": "T021846",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:14.04_esm"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Ubuntu Linux 16.04 ESM",
                "product": {
                  "name": "Ubuntu Linux 16.04 ESM",
                  "product_id": "T021847",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:16.04_esm"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux"
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-45142",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Heimdal. Der Fehler besteht aufgrund einer logischen Umkehrung, die dazu f\u00fchrt, dass die Validierung von Nachrichtenintegrit\u00e4tscodes in gssapi/arcfour invertiert wird. Ein Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T021846",
          "T000126",
          "T015944",
          "T026205",
          "T012167",
          "T021847"
        ]
      },
      "release_date": "2023-02-08T23:00:00Z",
      "title": "CVE-2022-45142"
    }
  ]
}

cve-2022-45142

Vulnerability from cvelistv5

Published

2023-03-06 00:00

Modified

2024-08-03 14:09

Severity ?

Summary

The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by adding "!= 0" comparisons to the result of memcmp. When these patches were backported to the heimdal-7.7.1 and heimdal-7.8.0 branches (and possibly other branches) a logic inversion sneaked in causing the validation of message integrity codes in gssapi/arcfour to be inverted.

References

▼	URL	Tags
	https://www.openwall.com/lists/oss-security/2023/02/08/1
	https://security.gentoo.org/glsa/202310-06	vendor-advisory

Impacted products

▼	Vendor	Product
	n/a	Samba

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T14:09:56.389Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2023/02/08/1"
          },
          {
            "name": "GLSA-202310-06",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202310-06"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Samba",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by adding \"!= 0\" comparisons to the result of memcmp. When these patches were backported to the heimdal-7.7.1 and heimdal-7.8.0 branches (and possibly other branches) a logic inversion sneaked in causing the validation of message integrity codes in gssapi/arcfour to be inverted."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-354",
              "description": "CWE-354",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-08T08:06:31.799478",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://www.openwall.com/lists/oss-security/2023/02/08/1"
        },
        {
          "name": "GLSA-202310-06",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202310-06"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2022-45142",
    "datePublished": "2023-03-06T00:00:00",
    "dateReserved": "2022-11-10T00:00:00",
    "dateUpdated": "2024-08-03T14:09:56.389Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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