WID-SEC-W-2026-0464

Vulnerability from csaf_certbund - Published: 2026-02-19 23:00 - Updated: 2026-06-02 22:00
Summary
QEMU: Schwachstelle ermöglicht Denial of Service und die Offenlegung von Informationen
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: 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 oder vertrauliche Informationen offenzulegen.
Betroffene Betriebssysteme: - Sonstiges - UNIX - Windows
CVE-2026-2243
Affected products
Product Identifier Version Remediation
Open Source QEMU
Open Source
 cpe:/a:qemu:qemu:- —
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
SUSE openSUSE
SUSE
 cpe:/o:suse:opensuse:- —
Amazon Linux 2
Amazon
 cpe:/o:amazon:linux_2:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
References
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 oder vertrauliche Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\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-2026-0464 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0464.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0464 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0464"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker vom 2026-02-19",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2440934"
      },
      {
        "category": "external",
        "summary": "NIST Vulnerability Database vom 2026-02-19",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2243"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2026-3182 vom 2026-03-06",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3182.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8161-1 vom 2026-04-10",
        "url": "https://ubuntu.com/security/notices/USN-8161-1"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:20567-1 vom 2026-04-21",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/7GIXQ6D7BVUI3JL6ZUXHFRN7NSCNRJWP/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21235-1 vom 2026-04-22",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025558.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-50239 vom 2026-04-27",
        "url": "https://linux.oracle.com/errata/ELSA-2026-50239.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-50241 vom 2026-04-28",
        "url": "https://linux.oracle.com/errata/ELSA-2026-50241.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21354-1 vom 2026-04-28",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025749.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21912-1 vom 2026-06-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026482.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21883-1 vom 2026-06-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026508.html"
      }
    ],
    "source_lang": "en-US",
    "title": "QEMU: Schwachstelle erm\u00f6glicht Denial of Service und die Offenlegung von Informationen",
    "tracking": {
      "current_release_date": "2026-06-02T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-03T06:32:42.838+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-0464",
      "initial_release_date": "2026-02-19T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-02-19T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-03-05T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2026-04-12T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2026-04-21T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2026-04-22T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-04-27T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2026-04-28T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-06-02T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "8"
    }
  },
  "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": "Open Source QEMU",
            "product": {
              "name": "Open Source QEMU",
              "product_id": "T051032",
              "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": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "SUSE openSUSE",
            "product": {
              "name": "SUSE openSUSE",
              "product_id": "T027843",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:opensuse:-"
              }
            }
          }
        ],
        "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-2026-2243",
      "product_status": {
        "known_affected": [
          "T051032",
          "T002207",
          "T000126",
          "T027843",
          "398363",
          "T004914"
        ]
      },
      "release_date": "2026-02-19T23:00:00.000+00:00",
      "title": "CVE-2026-2243"
    }
  ]
}


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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.


Detection rules are retrieved from Rulezet.