wid-sec-w-2022-0226
Vulnerability from csaf_certbund
Published
2021-10-27 22:00
Modified
2024-06-12 22:00
Summary
Linux Kernel: 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
Der Kernel stellt den Kern des Linux Betriebssystems dar.
Angriff
Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- Linux


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": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "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-2022-0226 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-0226.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-0226 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0226"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3642-1 vom 2021-11-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009708.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3640-1 vom 2021-11-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009710.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3641-1 vom 2021-11-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009709.html"
      },
      {
        "category": "external",
        "summary": "Mailing list \"OSS Security\" vom 2021-10-28",
        "url": "http://seclists.org/oss-sec/2021/q4/67"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5139-1 vom 2021-11-11",
        "url": "https://ubuntu.com/security/notices/USN-5139-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3658-1 vom 2021-11-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009719.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3655-1 vom 2021-11-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009720.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3675-1 vom 2021-11-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009734.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3754-1 vom 2021-11-20",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009757.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5165-1 vom 2021-12-01",
        "url": "https://ubuntu.com/security/notices/USN-5165-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5210-1 vom 2022-01-06",
        "url": "https://ubuntu.com/security/notices/USN-5210-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5208-1 vom 2022-01-06",
        "url": "https://ubuntu.com/security/notices/USN-5208-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5218-1 vom 2022-01-11",
        "url": "https://ubuntu.com/security/notices/USN-5218-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5210-2 vom 2022-01-12",
        "url": "https://ubuntu.com/security/notices/USN-5210-2"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-1988 vom 2022-05-17",
        "url": "https://linux.oracle.com/errata/ELSA-2022-1988.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:4956 vom 2022-06-09",
        "url": "https://access.redhat.com/errata/RHSA-2022:4956"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:1988 vom 2022-05-10",
        "url": "https://access.redhat.com/errata/RHSA-2022:1988"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:5483 vom 2022-07-01",
        "url": "https://access.redhat.com/errata/RHSA-2022:5483"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2024:2010-1 vom 2024-06-12",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018711.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2024:2008-1 vom 2024-06-12",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018706.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-06-12T22:00:00.000+00:00",
      "generator": {
        "date": "2024-06-13T10:06:31.505+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2022-0226",
      "initial_release_date": "2021-10-27T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-10-27T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-11-09T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-10T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-11-11T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-16T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-21T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-30T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2022-01-05T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2022-01-10T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2022-01-12T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2022-05-10T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-05-17T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-06-08T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-07-03T22:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-06-12T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "15"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "powerpc \u003e=5.2",
                "product": {
                  "name": "Open Source Linux Kernel powerpc \u003e=5.2",
                  "product_id": "T020849",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:5.2::powerpc"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux Kernel"
          }
        ],
        "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": "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": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      },
      {
        "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-2021-43056",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle im Linux Kernel auf PowerPC Architekturen, wenn KVM als Hypervisor benutzt wird. Grund ist ein Fehler in \"idle_kvm_start_guest()\". Ein Angreifer aus einer KVM Gastmaschine kann dies ausnutzen, um einen Denial of Service Zustand des Hostsystems auszul\u00f6sen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T004914"
        ]
      },
      "release_date": "2021-10-27T22:00:00Z",
      "title": "CVE-2021-43056"
    }
  ]
}


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