{
  "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 oder Sicherheitsvorkehrungen zu umgehen.",
        "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-2023-1978 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1978.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-1978 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1978"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7111646 vom 2024-01-24",
        "url": "https://www.ibm.com/support/pages/node/7111646"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugzilla Bug ID: 2213802 vom 2023-08-07",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2213802"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-D9509BE489 vom 2023-08-11",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-d9509be489"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-EE241DCF80 vom 2023-08-11",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-ee241dcf80"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6343-1 vom 2023-09-06",
        "url": "https://ubuntu.com/security/notices/USN-6343-1"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-5492 vom 2023-09-10",
        "url": "https://lists.debian.org/debian-security-announce/2023/msg00184.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2023-6583 vom 2024-01-18",
        "url": "https://oss.oracle.com/pipermail/el-errata/2024-January/015150.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6416-1 vom 2023-10-05",
        "url": "https://ubuntu.com/security/notices/USN-6416-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6416-2 vom 2023-10-06",
        "url": "https://ubuntu.com/security/notices/USN-6416-2"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:4035-1 vom 2023-10-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-October/016616.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:4072-1 vom 2023-10-13",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-October/016677.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:4071-1 vom 2023-10-13",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-October/016678.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:4093-1 vom 2023-10-17",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-October/016702.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6416-3 vom 2023-10-19",
        "url": "https://ubuntu.com/security/notices/USN-6416-3"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6445-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6445-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6445-2 vom 2023-10-24",
        "url": "https://ubuntu.com/security/notices/USN-6445-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6466-1 vom 2023-10-31",
        "url": "https://ubuntu.com/security/notices/USN-6466-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:4072-2 vom 2023-11-06",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/016995.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2023:6583 vom 2023-11-07",
        "url": "https://access.redhat.com/errata/RHSA-2023:6583"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2023:7077 vom 2023-11-15",
        "url": "https://access.redhat.com/errata/RHSA-2023:7077"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2023:6901 vom 2023-11-15",
        "url": "https://access.redhat.com/errata/RHSA-2023:6901"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:3859 vom 2024-06-12",
        "url": "https://access.redhat.com/errata/RHSA-2024:3859"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:4740 vom 2024-07-24",
        "url": "https://access.redhat.com/errata/RHSA-2024:4740"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-07-23T22:00:00.000+00:00",
      "generator": {
        "date": "2024-07-24T09:10:37.394+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2023-1978",
      "initial_release_date": "2023-08-07T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-08-07T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-08-13T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2023-09-06T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-09-10T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2023-10-04T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-08T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-10T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-10-15T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-10-16T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-10-19T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-24T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-31T23:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-11-06T23:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-11-07T23:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2023-11-14T23:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-01-18T23:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-01-24T23:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von IBM aufgenommen"
        },
        {
          "date": "2024-06-11T22:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-07-23T22:00:00.000+00:00",
          "number": "19",
          "summary": "Neue Updates von Red Hat aufgenommen"
        }
      ],
      "status": "final",
      "version": "19"
    }
  },
  "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": "12",
                "product": {
                  "name": "IBM Security Guardium 12.0",
                  "product_id": "T031092",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:security_guardium:12.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Security Guardium"
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Linux Kernel",
            "product": {
              "name": "Open Source Linux Kernel",
              "product_id": "T029076",
              "product_identification_helper": {
                "cpe": "cpe:/o:linux: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-2023-4155",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle im Linux Kernel. Diese besteht in der Komponente \"KVM AMD Secure Encrypted Virtualization (SEV)\" und ist auf eine Race-Condition zur\u00fcckzuf\u00fchren. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um einen Denial of Service Zustand herbeizuf\u00fchren oder Sicherheitsvorkehrungen zu umgehen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029076",
          "2951",
          "T002207",
          "67646",
          "T000126",
          "T031092",
          "T004914",
          "74185"
        ]
      },
      "release_date": "2023-08-07T22:00:00Z",
      "title": "CVE-2023-4155"
    }
  ]
}