WID-SEC-W-2026-0550

Vulnerability from csaf_certbund - Published: 2026-02-26 23:00 - Updated: 2026-06-08 22:00
Summary
InetUtils (telnetd): Schwachstelle ermöglicht Privilegieneskalation
Severity
Mittel
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: Inetutils ist eine Sammlung von grundlegenden Netzwerkprogrammen für Unix-ähnliche Betriebssysteme.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle in InetUtils' "telnetd" ausnutzen, um seine Privilegien zu erhöhen.
Betroffene Betriebssysteme: - Sonstiges - UNIX
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
Ubuntu Linux
Ubuntu
cpe:/o:canonical:ubuntu_linux:-
Open Source InetUtils 2.7
Open Source / InetUtils
cpe:/a:gnu:inetutils:2.7 2.7

{
  "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": "Inetutils ist eine Sammlung von grundlegenden Netzwerkprogrammen f\u00fcr Unix-\u00e4hnliche Betriebssysteme.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in InetUtils\u0027 \"telnetd\" ausnutzen, um seine Privilegien zu erh\u00f6hen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX",
        "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-2026-0550 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0550.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0550 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0550"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory vom 2026-02-26",
        "url": "https://github.com/advisories/GHSA-J682-47RX-FXRP"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4527 vom 2026-04-11",
        "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00006.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8387-1 vom 2026-06-08",
        "url": "https://ubuntu.com/security/notices/USN-8387-1"
      }
    ],
    "source_lang": "en-US",
    "title": "InetUtils (telnetd): Schwachstelle erm\u00f6glicht Privilegieneskalation",
    "tracking": {
      "current_release_date": "2026-06-08T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-09T09:01:05.694+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-0550",
      "initial_release_date": "2026-02-26T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-02-26T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-04-12T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-06-08T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.7",
                "product": {
                  "name": "Open Source InetUtils 2.7",
                  "product_id": "T051313",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:gnu:inetutils:2.7"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "InetUtils"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-28372",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T051313"
        ]
      },
      "release_date": "2026-02-26T23:00:00.000+00:00",
      "title": "CVE-2026-28372"
    }
  ]
}


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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

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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.
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  • 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.

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