{
  "document": {
    "aggregate_severity": {
      "text": "niedrig"
    },
    "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": "QEMU ist eine freie Virtualisierungssoftware, die die gesamte Hardware eines Computers emuliert.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann mehrere Schwachstellen in QEMU ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX\n- Windows",
        "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-2022-1097 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-1097.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-1097 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-1097"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1837-1 vom 2021-06-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008916.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1829-1 vom 2021-06-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008910.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1023-1 vom 2021-04-06",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008585.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1918-1 vom 2021-06-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008972.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1947-1 vom 2021-06-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008990.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2623 vom 2021-04-10",
        "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1240-1 vom 2021-04-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008648.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1243-1 vom 2021-04-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008646.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1241-1 vom 2021-04-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008649.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1244-1 vom 2021-04-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008650.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1242-1 vom 2021-04-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008652.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1251-1 vom 2021-04-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008655.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1252-1 vom 2021-04-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008654.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:14702-1 vom 2021-04-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008656.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:14704-1 vom 2021-04-20",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008660.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1305-1 vom 2021-04-22",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008671.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:14706-1 vom 2021-04-23",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008673.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1895-1 vom 2021-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008959.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1894-1 vom 2021-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008954.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1893-1 vom 2021-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008949.html"
      },
      {
        "category": "external",
        "summary": "Mailing list OSS Security vom 2021-02-25",
        "url": "https://www.openwall.com/lists/oss-security/2021/02/25/2"
      },
      {
        "category": "external",
        "summary": "QEMU-Devel Mailinglist",
        "url": "https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html"
      },
      {
        "category": "external",
        "summary": "Citrix Security Advisory CTX316325 vom 2021-06-23",
        "url": "https://support.citrix.com/article/CTX316325"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9335 vom 2021-06-29",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9335.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5010-1 vom 2021-07-15",
        "url": "https://ubuntu.com/security/notices/USN-5010-1"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9568 vom 2021-12-01",
        "url": "https://linux.oracle.com/errata/ELSA-2021-9568.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:5238 vom 2021-12-21",
        "url": "https://access.redhat.com/errata/RHSA-2021:5238"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-5238 vom 2021-12-23",
        "url": "http://linux.oracle.com/errata/ELSA-2021-5238.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9638 vom 2022-01-04",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9638.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:0081 vom 2022-01-11",
        "url": "https://access.redhat.com/errata/RHSA-2022:0081"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-9123 vom 2022-02-05",
        "url": "https://linux.oracle.com/errata/ELSA-2022-9123.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-9172 vom 2022-02-25",
        "url": "https://linux.oracle.com/errata/ELSA-2022-9172.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5307-1 vom 2022-02-28",
        "url": "https://ubuntu.com/security/notices/USN-5307-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:1375-1 vom 2022-04-25",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-April/010821.html"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202208-27 vom 2022-08-23",
        "url": "https://security.gentoo.org/glsa/202208-27"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3099 vom 2022-09-05",
        "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2023-2060 vom 2023-06-05",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2023-2060.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-12605 vom 2024-09-02",
        "url": "https://linux.oracle.com/errata/ELSA-2024-12605.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-12604 vom 2024-09-02",
        "url": "https://linux.oracle.com/errata/ELSA-2024-12604.html"
      }
    ],
    "source_lang": "en-US",
    "title": "QEMU: Mehrere Schwachstellen erm\u00f6glichten Denial of Service",
    "tracking": {
      "current_release_date": "2024-09-02T22:00:00.000+00:00",
      "generator": {
        "date": "2024-09-03T08:15:46.492+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.6"
        }
      },
      "id": "WID-SEC-W-2022-1097",
      "initial_release_date": "2021-02-25T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-02-25T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-04-06T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-04-11T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2021-04-18T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-04-19T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-04-20T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-04-22T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-04-25T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-03T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-08T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-09T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-10T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-23T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Citrix aufgenommen"
        },
        {
          "date": "2021-06-28T22:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-07-15T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-11-30T23:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-12-21T23:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-12-22T23:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-01-04T23:00:00.000+00:00",
          "number": "19",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-01-11T23:00:00.000+00:00",
          "number": "20",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-02-06T23:00:00.000+00:00",
          "number": "21",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-02-24T23:00:00.000+00:00",
          "number": "22",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-02-28T23:00:00.000+00:00",
          "number": "23",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2022-04-25T22:00:00.000+00:00",
          "number": "24",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2022-08-22T22:00:00.000+00:00",
          "number": "25",
          "summary": "Neue Updates von Gentoo aufgenommen"
        },
        {
          "date": "2022-09-04T22:00:00.000+00:00",
          "number": "26",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2023-06-05T22:00:00.000+00:00",
          "number": "27",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2024-09-02T22:00:00.000+00:00",
          "number": "28",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        }
      ],
      "status": "final",
      "version": "28"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Citrix Systems Hypervisor",
            "product": {
              "name": "Citrix Systems Hypervisor",
              "product_id": "T016872",
              "product_identification_helper": {
                "cpe": "cpe:/o:citrix:hypervisor:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Citrix Systems"
      },
      {
        "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": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T012167",
              "product_identification_helper": {
                "cpe": "cpe:/o:gentoo:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Gentoo"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source QEMU",
            "product": {
              "name": "Open Source QEMU",
              "product_id": "T007150",
              "product_identification_helper": {
                "cpe": "cpe:/a:qemu:qemu:-"
              }
            }
          }
        ],
        "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-2021-20203",
      "notes": [
        {
          "category": "description",
          "text": "In QEMU existieren mehrere Schwachstellen im \"vmxnet3\" NIC-Emulator und im \"e1000\" NIC-Emulator. Sie k\u00f6nnen durch die Verwendung ung\u00fcltiger Werte f\u00fcr die Warteschlange \"rx/tx\" oder bei der Verarbeitung von Transmissions- (tx) Deskriptoren in \"process_tx_desc\" ausgel\u00f6st werden. Ein lokaler Angreifer in einer Gastmaschine kann diese Schwachstellen ausnutzen, um einen Denial of Service Zustand auszul\u00f6sen."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T000126",
          "398363",
          "T007150",
          "T012167",
          "T004914",
          "T016872"
        ]
      },
      "release_date": "2021-02-25T23:00:00.000+00:00",
      "title": "CVE-2021-20203"
    },
    {
      "cve": "CVE-2021-20257",
      "notes": [
        {
          "category": "description",
          "text": "In QEMU existieren mehrere Schwachstellen im \"vmxnet3\" NIC-Emulator und im \"e1000\" NIC-Emulator. Sie k\u00f6nnen durch die Verwendung ung\u00fcltiger Werte f\u00fcr die Warteschlange \"rx/tx\" oder bei der Verarbeitung von Transmissions- (tx) Deskriptoren in \"process_tx_desc\" ausgel\u00f6st werden. Ein lokaler Angreifer in einer Gastmaschine kann diese Schwachstellen ausnutzen, um einen Denial of Service Zustand auszul\u00f6sen."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T000126",
          "398363",
          "T007150",
          "T012167",
          "T004914",
          "T016872"
        ]
      },
      "release_date": "2021-02-25T23:00:00.000+00:00",
      "title": "CVE-2021-20257"
    }
  ]
}