WID-SEC-W-2026-0716

Vulnerability from csaf_certbund - Published: 2026-03-12 23:00 - Updated: 2026-05-20 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
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:-
IBM QRadar SIEM <7.5.0 UP15 IF02
IBM / QRadar SIEM
<7.5.0 UP15 IF02
Ubuntu Linux
Ubuntu
cpe:/o:canonical:ubuntu_linux:-
Open Source OpenSSH GSSAPI delta Linux distributions
Open Source / OpenSSH
cpe:/a:openbsd:openssh:gssapi_delta_linux_distributions GSSAPI delta Linux distributions
Red Hat OpenShift Container Platform <4.17.54
Red Hat / OpenShift
Container Platform <4.17.54
Oracle Linux
Oracle
cpe:/o:oracle:linux:-
Red Hat OpenShift Container Platform <4.15.64
Red Hat / OpenShift
Container Platform <4.15.64
RESF Rocky Linux
RESF
cpe:/o:resf:rocky_linux:-
Fedora Linux
Fedora
cpe:/o:fedoraproject:fedora:-
References
URL Category
https://wid.cert-bund.de/.well-known/csaf/white/2… self
https://wid.cert-bund.de/portal/wid/securityadvis… self
https://github.com/advisories/GHSA-WCPP-3X59-H8VP external
https://seclists.org/oss-sec/2026/q1/299 external
https://ubuntu.com/security/notices/USN-8090-1 external
https://ubuntu.com/security/notices/USN-8090-2 external
https://bodhi.fedoraproject.org/updates/FEDORA-20… external
https://bodhi.fedoraproject.org/updates/FEDORA-20… external
https://bodhi.fedoraproject.org/updates/FEDORA-20… external
https://linux.oracle.com/errata/ELSA-2026-6462.html external
https://linux.oracle.com/errata/ELSA-2026-6461.html external
https://linux.oracle.com/errata/ELSA-2026-6463.html external
https://access.redhat.com/errata/RHSA-2026:6463 external
https://access.redhat.com/errata/RHSA-2026:6462 external
https://access.redhat.com/errata/RHSA-2026:6461 external
https://errata.build.resf.org/RLSA-2026:6461 external
https://access.redhat.com/errata/RHSA-2026:7107 external
https://lists.debian.org/debian-security-announce… external
https://lists.debian.org/debian-lts-announce/2026… external
https://access.redhat.com/errata/RHSA-2026:9415 external
https://access.redhat.com/errata/RHSA-2026:10065 external
https://access.redhat.com/errata/RHSA-2026:9732 external
https://www.ibm.com/support/pages/node/7270594 external
https://access.redhat.com/errata/RHSA-2026:10714 external
https://access.redhat.com/errata/RHSA-2026:13812 external
https://access.redhat.com/errata/RHSA-2026:13750 external
https://access.redhat.com/errata/RHSA-2026:14924 external
https://access.redhat.com/errata/RHSA-2026:15893 external
https://access.redhat.com/errata/RHSA-2026:15891 external
https://access.redhat.com/errata/RHSA-2026:12071 external
https://access.redhat.com/errata/RHSA-2026:14773 external
https://access.redhat.com/errata/RHSA-2026:15087 external
https://access.redhat.com/errata/RHSA-2026:17596 external
https://access.redhat.com/errata/RHSA-2026:19724 external

{
  "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"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4535 vom 2026-04-16",
        "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00014.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:9415 vom 2026-04-21",
        "url": "https://access.redhat.com/errata/RHSA-2026:9415"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:10065 vom 2026-04-23",
        "url": "https://access.redhat.com/errata/RHSA-2026:10065"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:9732 vom 2026-04-22",
        "url": "https://access.redhat.com/errata/RHSA-2026:9732"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7270594 vom 2026-04-23",
        "url": "https://www.ibm.com/support/pages/node/7270594"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:10714 vom 2026-04-27",
        "url": "https://access.redhat.com/errata/RHSA-2026:10714"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13812 vom 2026-05-05",
        "url": "https://access.redhat.com/errata/RHSA-2026:13812"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13750 vom 2026-05-05",
        "url": "https://access.redhat.com/errata/RHSA-2026:13750"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:14924 vom 2026-05-07",
        "url": "https://access.redhat.com/errata/RHSA-2026:14924"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:15893 vom 2026-05-11",
        "url": "https://access.redhat.com/errata/RHSA-2026:15893"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:15891 vom 2026-05-11",
        "url": "https://access.redhat.com/errata/RHSA-2026:15891"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:12071 vom 2026-05-11",
        "url": "https://access.redhat.com/errata/RHSA-2026:12071"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory vom 2026-05-13",
        "url": "https://access.redhat.com/errata/RHSA-2026:14773"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:15087 vom 2026-05-13",
        "url": "https://access.redhat.com/errata/RHSA-2026:15087"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:17596 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:17596"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19724 vom 2026-05-21",
        "url": "https://access.redhat.com/errata/RHSA-2026:19724"
      }
    ],
    "source_lang": "en-US",
    "title": "OpenSSH GSSAPI delta: Schwachstelle erm\u00f6glicht nicht spezifizierten Angriff",
    "tracking": {
      "current_release_date": "2026-05-20T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-21T07:56:25.178+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "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"
        },
        {
          "date": "2026-04-16T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-04-21T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-04-22T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-04-23T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von IBM aufgenommen"
        },
        {
          "date": "2026-04-26T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-05T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-07T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-10T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-14T22:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-20T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Red Hat aufgenommen"
        }
      ],
      "status": "final",
      "version": "15"
    }
  },
  "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_range",
                "name": "\u003c7.5.0 UP15 IF02",
                "product": {
                  "name": "IBM QRadar SIEM \u003c7.5.0 UP15 IF02",
                  "product_id": "T053291"
                }
              },
              {
                "category": "product_version",
                "name": "7.5.0 UP15 IF02",
                "product": {
                  "name": "IBM QRadar SIEM 7.5.0 UP15 IF02",
                  "product_id": "T053291-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:qradar_siem:7.5.0_up15_if02"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "QRadar SIEM"
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "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:-"
              }
            }
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "Container Platform \u003c4.15.64",
                "product": {
                  "name": "Red Hat OpenShift Container Platform \u003c4.15.64",
                  "product_id": "T054017"
                }
              },
              {
                "category": "product_version",
                "name": "Container Platform 4.15.64",
                "product": {
                  "name": "Red Hat OpenShift Container Platform 4.15.64",
                  "product_id": "T054017-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:openshift:container_platform__4.15.64"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Container Platform \u003c4.17.54",
                "product": {
                  "name": "Red Hat OpenShift Container Platform \u003c4.17.54",
                  "product_id": "T054403"
                }
              },
              {
                "category": "product_version",
                "name": "Container Platform 4.17.54",
                "product": {
                  "name": "Red Hat OpenShift Container Platform 4.17.54",
                  "product_id": "T054403-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:openshift:container_platform__4.17.54"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "OpenShift"
          }
        ],
        "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",
          "T053291",
          "T051700",
          "T051698",
          "T054403",
          "T004914",
          "T054017",
          "T032255",
          "74185"
        ]
      },
      "release_date": "2026-03-12T23:00:00.000+00:00",
      "title": "CVE-2026-3497"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…
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

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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…