WID-SEC-W-2026-1598

Vulnerability from csaf_certbund - Published: 2026-05-19 22:00 - Updated: 2026-05-31 22:00
Summary
libvirt: Schwachstelle ermöglicht Denial of Service
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: Libvirt ist eine Bibliothek, die Schnittstellen zu den Virtualisierungsfunktionen von Linux anbietet und Werkzeuge zur Verwaltung von virtualisierten Systemen zur Verfügung stellt. Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle in libvirt ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux - UNIX - Windows
CVE-2025-12748
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux <9
Red Hat / Enterprise Linux
 <9
Red Hat Enterprise Linux <10
Red Hat / Enterprise Linux
 <10
Open Source libvirt
Open Source
 cpe:/a:redhat:libvirt:- —
RESF Rocky Linux
RESF
 cpe:/o:resf:rocky_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": "Libvirt ist eine Bibliothek, die Schnittstellen zu den Virtualisierungsfunktionen von Linux anbietet und Werkzeuge zur Verwaltung von virtualisierten Systemen zur Verf\u00fcgung stellt.\r\nRed Hat Enterprise Linux (RHEL) ist eine popul\u00e4re Linux-Distribution.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in libvirt 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-2026-1598 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1598.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1598 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1598"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:18326 vom 2026-05-19",
        "url": "https://access.redhat.com/errata/RHSA-2026:18326"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:18748 vom 2026-05-19",
        "url": "https://access.redhat.com/errata/RHSA-2026:18748"
      },
      {
        "category": "external",
        "summary": "libvirt Upstream Issue vom 2025-10-20",
        "url": "https://gitlab.com/libvirt/libvirt/-/work_items/825"
      },
      {
        "category": "external",
        "summary": "libvirt Patch vom 2025-11-07",
        "url": "https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/LTGHU3S4JEMCF5KJNJGWWZ7F2CS6L5SG/"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugzilla vom 2025-11-10",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2413801"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:18748 vom 2026-05-28",
        "url": "https://errata.build.resf.org/RLSA-2026:18748"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:18326 vom 2026-05-29",
        "url": "https://errata.build.resf.org/RLSA-2026:18326"
      }
    ],
    "source_lang": "en-US",
    "title": "libvirt: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2026-05-31T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-01T07:26:08.007+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1598",
      "initial_release_date": "2026-05-19T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-19T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-05-28T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2026-05-31T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source libvirt",
            "product": {
              "name": "Open Source libvirt",
              "product_id": "T054373",
              "product_identification_helper": {
                "cpe": "cpe:/a:redhat:libvirt:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "RESF Rocky Linux",
            "product": {
              "name": "RESF Rocky Linux",
              "product_id": "T032255",
              "product_identification_helper": {
                "cpe": "cpe:/o:resf:rocky_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "RESF"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c10",
                "product": {
                  "name": "Red Hat Enterprise Linux \u003c10",
                  "product_id": "T054375"
                }
              },
              {
                "category": "product_version",
                "name": "10",
                "product": {
                  "name": "Red Hat Enterprise Linux 10",
                  "product_id": "T054375-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:10"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c9",
                "product": {
                  "name": "Red Hat Enterprise Linux \u003c9",
                  "product_id": "T054376"
                }
              },
              {
                "category": "product_version",
                "name": "9",
                "product": {
                  "name": "Red Hat Enterprise Linux 9",
                  "product_id": "T054376-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:9"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Enterprise Linux"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-12748",
      "product_status": {
        "known_affected": [
          "T054376",
          "T054375",
          "T054373",
          "T032255"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2025-12748"
    }
  ]
}


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