WID-SEC-W-2023-2399

Vulnerability from csaf_certbund - Published: 2023-09-19 22:00 - Updated: 2023-11-16 23:00
Summary
Xen: Schwachstelle ermöglicht Privilegieneskalation, DoS und Offenlegung von Informationen

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
Xen ist ein Virtueller-Maschinen-Monitor (VMM), der Hardware (x86, IA-64, PowerPC) für die darauf laufenden Systeme (Domains) paravirtualisiert.
Angriff
Ein lokaler Angreifer kann eine Schwachstelle in Xen ausnutzen, um seine Privilegien zu erhöhen, einen Denial of Service zu verursachen oder Informationen offenzulegen.
Betroffene Betriebssysteme
- UNIX - Linux
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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": "Xen ist ein Virtueller-Maschinen-Monitor (VMM), der Hardware (x86, IA-64, PowerPC) f\u00fcr die darauf laufenden Systeme (Domains) paravirtualisiert.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in Xen ausnutzen, um seine Privilegien zu erh\u00f6hen, einen Denial of Service zu verursachen oder Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- 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-2023-2399 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2399.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-2399 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2399"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:4476-1 vom 2023-11-17",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/017058.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:4475-1 vom 2023-11-17",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-November/017059.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:3894-1 vom 2023-09-29",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016464.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:3903-1 vom 2023-09-29",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016465.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:3902-1 vom 2023-09-29",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016466.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:3895-1 vom 2023-09-29",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016463.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:3832-1 vom 2023-09-27",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016360.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:3831-1 vom 2023-09-27",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016361.html"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-35D2AD2328 vom 2023-09-26",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-35d2ad2328"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-948136565A vom 2023-09-26",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-948136565a"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-4125279976 vom 2023-09-26",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-4125279976"
      },
      {
        "category": "external",
        "summary": "Xen Security Advisory vom 2023-09-19",
        "url": "https://xenbits.xen.org/xsa/advisory-438.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Xen: Schwachstelle erm\u00f6glicht Privilegieneskalation, DoS und Offenlegung von Informationen",
    "tracking": {
      "current_release_date": "2023-11-16T23:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:58:38.725+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2023-2399",
      "initial_release_date": "2023-09-19T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-09-19T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-09-26T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2023-09-27T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-10-01T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-11-16T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Open Source Xen \u003c 438-4.15.patch",
                "product": {
                  "name": "Open Source Xen \u003c 438-4.15.patch",
                  "product_id": "T029991",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:xen:xen:438-4.15.patch"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Open Source Xen \u003c 438-4.16.patch",
                "product": {
                  "name": "Open Source Xen \u003c 438-4.16.patch",
                  "product_id": "T029992",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:xen:xen:438-4.16.patch"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Open Source Xen \u003c 438-4.17.patch",
                "product": {
                  "name": "Open Source Xen \u003c 438-4.17.patch",
                  "product_id": "T029993",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:xen:xen:438-4.17.patch"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Open Source Xen \u003c 438.patch",
                "product": {
                  "name": "Open Source Xen \u003c 438.patch",
                  "product_id": "T029994",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:xen:xen:438.patch"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Xen"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "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"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-34322",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Xen. Wenn PV-G\u00e4ste im Shadow-Paging-Modus ausgef\u00fchrt werden, kommt es unter bestimmten Umst\u00e4nden zu einer unsachgem\u00e4\u00dfen Behandlung der \"shadow root page table\". Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um potentiell seine Rechte zu erweitern, einen Denial of Service zu verursachen oder Informationen offenzulegen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T002207",
          "74185"
        ]
      },
      "release_date": "2023-09-19T22:00:00.000+00:00",
      "title": "CVE-2023-34322"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.