WID-SEC-W-2026-0716

Vulnerability from csaf_certbund - Published: 2026-03-12 23:00 - Updated: 2026-04-09 22:00
Summary
OpenSSH GSSAPI delta: Schwachstelle ermöglicht nicht spezifizierten Angriff
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: OpenSSH ist eine Open Source Implementierung des Secure Shell Protokolls. Ubuntu Linux ist die Linux Distribution des Herstellers Canonical.
Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSH GSSAPI und Ubuntu Linux ausnutzen, um ein undefiniertes Fehlverhalten oder einen potenziellen Denial-of-Service-Angriff auszulösen.
Betroffene Betriebssysteme: - Linux
CVE-2026-3497
References
To clipboard 

{
  "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": "OpenSSH ist eine Open Source Implementierung des Secure Shell Protokolls.\r\nUbuntu Linux ist die Linux Distribution des Herstellers Canonical.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSH GSSAPI und Ubuntu Linux ausnutzen, um ein undefiniertes Fehlverhalten oder einen potenziellen Denial-of-Service-Angriff auszul\u00f6sen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "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-2026-0716 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0716.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0716 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0716"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-WCPP-3X59-H8VP vom 2026-03-12",
        "url": "https://github.com/advisories/GHSA-WCPP-3X59-H8VP"
      },
      {
        "category": "external",
        "summary": "Mailing List OSS-Security vom 2026-03-12",
        "url": "https://seclists.org/oss-sec/2026/q1/299"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8090-1 vom 2026-03-12",
        "url": "https://ubuntu.com/security/notices/USN-8090-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8090-2 vom 2026-03-12",
        "url": "https://ubuntu.com/security/notices/USN-8090-2"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-BAB4AA5DA7 vom 2026-03-18",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-bab4aa5da7"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-39819A3D62 vom 2026-03-18",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-39819a3d62"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-62FB46CAAC vom 2026-03-18",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-62fb46caac"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-6462 vom 2026-04-03",
        "url": "https://linux.oracle.com/errata/ELSA-2026-6462.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-6461 vom 2026-04-03",
        "url": "https://linux.oracle.com/errata/ELSA-2026-6461.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-6463 vom 2026-04-02",
        "url": "https://linux.oracle.com/errata/ELSA-2026-6463.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:6463 vom 2026-04-02",
        "url": "https://access.redhat.com/errata/RHSA-2026:6463"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:6462 vom 2026-04-02",
        "url": "https://access.redhat.com/errata/RHSA-2026:6462"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:6461 vom 2026-04-02",
        "url": "https://access.redhat.com/errata/RHSA-2026:6461"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:6461 vom 2026-04-09",
        "url": "https://errata.build.resf.org/RLSA-2026:6461"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:7107 vom 2026-04-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:7107"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6204 vom 2026-04-09",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00114.html"
      }
    ],
    "source_lang": "en-US",
    "title": "OpenSSH GSSAPI delta: Schwachstelle erm\u00f6glicht nicht spezifizierten Angriff",
    "tracking": {
      "current_release_date": "2026-04-09T22:00:00.000+00:00",
      "generator": {
        "date": "2026-04-10T07:16:55.297+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0716",
      "initial_release_date": "2026-03-12T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-03-12T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-03-17T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2026-04-06T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Oracle Linux und Red Hat aufgenommen"
        },
        {
          "date": "2026-04-08T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation und Red Hat aufgenommen"
        },
        {
          "date": "2026-04-09T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Debian aufgenommen"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "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": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "GSSAPI delta Linux distributions",
                "product": {
                  "name": "Open Source OpenSSH GSSAPI delta Linux distributions",
                  "product_id": "T051698",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:openbsd:openssh:gssapi_delta_linux_distributions"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "OpenSSH"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "RESF Rocky Linux",
            "product": {
              "name": "RESF Rocky Linux",
              "product_id": "T032255",
              "product_identification_helper": {
                "cpe": "cpe:/o:resf:rocky_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "RESF"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T051700",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-3497",
      "product_status": {
        "known_affected": [
          "2951",
          "67646",
          "T051700",
          "T051698",
          "T004914",
          "T032255",
          "74185"
        ]
      },
      "release_date": "2026-03-12T23:00:00.000+00:00",
      "title": "CVE-2026-3497"
    }
  ]
}


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  • 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.