wid-sec-w-2022-1274
Vulnerability from csaf_certbund
Published
2020-12-10 23:00
Modified
2024-09-02 22:00
Summary
QEMU: 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
QEMU ist eine freie Virtualisierungssoftware, die die gesamte Hardware eines Computers emuliert.
Angriff
Ein lokaler Angreifer kann eine Schwachstelle in QEMU ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- Linux - UNIX - Windows


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": "QEMU ist eine freie Virtualisierungssoftware, die die gesamte Hardware eines Computers emuliert.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle 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-2022-1274 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-1274.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-1274 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-1274"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9285 vom 2021-06-06",
        "url": "https://linux.oracle.com/errata/ELSA-2021-9285.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1942-1 vom 2021-06-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008986.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:1762 vom 2021-05-18",
        "url": "https://access.redhat.com/errata/RHSA-2021:1762"
      },
      {
        "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-2021:1245-1 vom 2021-04-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008647.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": "Red Hat Bugzilla - Bug 1902651 vom 2020-12-04",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1902651"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4725-1 vom 2021-02-08",
        "url": "https://usn.ubuntu.com/4725-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4725-1 vom 2021-02-08",
        "url": "https://ubuntu.com/security/notices/USN-4725-1"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2021-1671 vom 2021-06-23",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2021-1671.html"
      },
      {
        "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": "Debian Security Advisory DLA-3099 vom 2022-09-05",
        "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.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: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-09-02T22:00:00.000+00:00",
      "generator": {
        "date": "2024-09-03T08:15:51.974+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.6"
        }
      },
      "id": "WID-SEC-W-2022-1274",
      "initial_release_date": "2020-12-10T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2020-12-10T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-02-08T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-04-18T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-05-18T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-06T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-06-10T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-23T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2021-11-30T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-09-04T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2024-09-02T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        }
      ],
      "status": "final",
      "version": "10"
    }
  },
  "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": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c5.2.0",
                "product": {
                  "name": "Open Source QEMU \u003c5.2.0",
                  "product_id": "T017819"
                }
              },
              {
                "category": "product_version",
                "name": "5.2.0",
                "product": {
                  "name": "Open Source QEMU 5.2.0",
                  "product_id": "T017819-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:qemu:qemu:5.2.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "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-2020-27821",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in QEMU. Die Speicherverwaltungs-API enth\u00e4lt einen Out-of-Bound-Schreibzugriff auf die MSI-X-Tabelle, wenn MMIO-Vorg\u00e4nge ausgef\u00fchrt werden. Ein Angreifer innerhalb einer Gast-VM kann dies ausnutzen, um den QEMU-Hostprozess zum Absturz zu bringen."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T000126",
          "398363",
          "T004914",
          "T017819"
        ]
      },
      "release_date": "2020-12-10T23:00:00.000+00:00",
      "title": "CVE-2020-27821"
    }
  ]
}


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