WID-SEC-W-2024-2023

Vulnerability from csaf_certbund - Published: 2017-05-17 22:00 - Updated: 2024-09-02 22:00
Summary
QEMU: Schwachstelle ermöglicht Privilegieneskalation
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 seine Privilegien zu erhöhen.
Betroffene Betriebssysteme: - Linux
CVE-2017-7493

Es existiert eine Schwachstelle in QEMU bezüglich des "VirtFS host directory sharing" mittels "Plan 9 File System" (9pfs) beim Zugriff auf virtfs Metadaten-Dateien im Sicherheits-Modus. Diese Schwachstelle beruht auf einer fehlerhaften Zugriffskontrolle. Ein Angreifer in einem Gastsystem kann diese Schwachstelle ausnutzen, um seine Privilegien auf dem Host erhöhen.

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:- —
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 seine Privilegien zu erh\u00f6hen.",
        "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-2024-2023 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2017/wid-sec-w-2024-2023.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-2023 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-2023"
      },
      {
        "category": "external",
        "summary": "Meldung auf oss-security vom 2017-05-17",
        "url": "http://marc.info/?l=oss-security\u0026m=149501865503588\u0026w=2"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugzilla - Bug 1451709 vom 2017-05-17",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1451709"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2017:1774-1 vom 2017-07-05",
        "url": "https://www.suse.com/support/update/announcement/2017/suse-su-20171774-1.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-3414-1 vom 2017-09-13",
        "url": "http://www.ubuntu.com/usn/usn-3414-1/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2017:2946-1 vom 2017-11-08",
        "url": "https://www.suse.com/support/update/announcement/2017/suse-su-20172946-1.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2017:2969-1 vom 2017-11-10",
        "url": "https://lists.opensuse.org/opensuse-security-announce/2017-11/msg00016.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2017:2963-1 vom 2017-11-10",
        "url": "https://lists.opensuse.org/opensuse-security-announce/2017-11/msg00014.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2017:3084-1 vom 2017-11-25",
        "url": "https://www.suse.com/support/update/announcement/2017/suse-su-20173084-1.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2018-4285 vom 2018-11-21",
        "url": "http://linux.oracle.com/errata/ELSA-2018-4285.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2018-4289 vom 2018-11-29",
        "url": "http://linux.oracle.com/errata/ELSA-2018-4289.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2019-4585 vom 2019-03-15",
        "url": "http://linux.oracle.com/errata/ELSA-2019-4585.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2019-4630 vom 2019-05-14",
        "url": "http://linux.oracle.com/errata/ELSA-2019-4630.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 Privilegieneskalation",
    "tracking": {
      "current_release_date": "2024-09-02T22:00:00.000+00:00",
      "generator": {
        "date": "2024-09-03T08:16:55.903+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.6"
        }
      },
      "id": "WID-SEC-W-2024-2023",
      "initial_release_date": "2017-05-17T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2017-05-17T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initial Release"
        },
        {
          "date": "2017-05-17T22:00:00.000+00:00",
          "number": "2",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2017-06-06T22:00:00.000+00:00",
          "number": "3",
          "summary": "Added references"
        },
        {
          "date": "2017-09-13T22:00:00.000+00:00",
          "number": "4",
          "summary": "New remediations available"
        },
        {
          "date": "2017-09-20T22:00:00.000+00:00",
          "number": "5",
          "summary": "Added references"
        },
        {
          "date": "2017-11-09T23:00:00.000+00:00",
          "number": "6",
          "summary": "New remediations available"
        },
        {
          "date": "2017-11-09T23:00:00.000+00:00",
          "number": "7",
          "summary": "New remediations available"
        },
        {
          "date": "2017-11-26T23:00:00.000+00:00",
          "number": "8",
          "summary": "New remediations available"
        },
        {
          "date": "2018-11-20T23:00:00.000+00:00",
          "number": "9",
          "summary": "New remediations available"
        },
        {
          "date": "2018-11-28T23:00:00.000+00:00",
          "number": "10",
          "summary": "New remediations available"
        },
        {
          "date": "2019-03-14T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2019-05-15T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-09-02T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        }
      ],
      "status": "final",
      "version": "13"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source QEMU",
            "product": {
              "name": "Open Source QEMU",
              "product_id": "185878",
              "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": "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-2017-7493",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in QEMU bez\u00fcglich des \"VirtFS host directory sharing\" mittels \"Plan 9 File System\" (9pfs) beim Zugriff auf virtfs Metadaten-Dateien im Sicherheits-Modus. Diese Schwachstelle beruht auf einer fehlerhaften Zugriffskontrolle. Ein Angreifer in einem Gastsystem kann diese Schwachstelle ausnutzen, um seine Privilegien auf dem Host erh\u00f6hen."
        }
      ],
      "product_status": {
        "known_affected": [
          "185878",
          "T002207",
          "T000126",
          "T004914"
        ]
      },
      "release_date": "2017-05-17T22:00:00.000+00:00",
      "title": "CVE-2017-7493"
    }
  ]
}



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