wid-sec-w-2023-2386
Vulnerability from csaf_certbund
Published
2023-09-18 22:00
Modified
2024-03-04 23:00
Summary
Linux Kernel: Schwachstelle ermöglicht 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
Der Kernel stellt den Kern des Linux Betriebssystems dar.
Angriff
Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Informationen offenzulegen.
Betroffene Betriebssysteme
- Linux


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": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Informationen offenzulegen.",
        "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-2023-2386 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2386.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-2386 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2386"
      },
      {
        "category": "external",
        "summary": "Linux Security Advisory vom 2023-09-18",
        "url": "https://seclists.org/oss-sec/2023/q3/192"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6442-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6442-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6441-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6441-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6440-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6440-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6439-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6439-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6446-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6446-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6443-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6443-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6445-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6445-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6444-1 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6444-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6440-2 vom 2023-10-20",
        "url": "https://ubuntu.com/security/notices/USN-6440-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6441-2 vom 2023-10-23",
        "url": "https://ubuntu.com/security/notices/USN-6441-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6439-2 vom 2023-10-23",
        "url": "https://ubuntu.com/security/notices/USN-6439-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6445-2 vom 2023-10-24",
        "url": "https://ubuntu.com/security/notices/USN-6445-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6444-2 vom 2023-10-24",
        "url": "https://ubuntu.com/security/notices/USN-6444-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6446-2 vom 2023-10-24",
        "url": "https://ubuntu.com/security/notices/USN-6446-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6446-3 vom 2023-10-26",
        "url": "https://ubuntu.com/security/notices/USN-6446-3"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6441-3 vom 2023-10-30",
        "url": "https://ubuntu.com/security/notices/USN-6441-3"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6460-1 vom 2023-10-30",
        "url": "https://ubuntu.com/security/notices/USN-6460-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6466-1 vom 2023-10-31",
        "url": "https://ubuntu.com/security/notices/USN-6466-1"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2023-12974 vom 2023-11-13",
        "url": "https://oss.oracle.com/pipermail/el-errata/2023-November/014870.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice LSN-0099-1 vom 2023-11-28",
        "url": "https://ubuntu.com/security/notices/LSN-0099-1"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2023-13043 vom 2023-12-14",
        "url": "https://linux.oracle.com/errata/ELSA-2023-13043.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-12110 vom 2024-02-02",
        "url": "https://linux.oracle.com/errata/ELSA-2024-12110.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-12150 vom 2024-02-13",
        "url": "https://linux.oracle.com/errata/ELSA-2024-12150.html"
      },
      {
        "category": "external",
        "summary": "ORACLE OVMSA-2024-0002 vom 2024-03-04",
        "url": "https://oss.oracle.com/pipermail/oraclevm-errata/2024-March/001092.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Offenlegung von Informationen",
    "tracking": {
      "current_release_date": "2024-03-04T23:00:00.000+00:00",
      "generator": {
        "date": "2024-03-05T09:36:31.723+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2023-2386",
      "initial_release_date": "2023-09-18T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-09-18T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-10-19T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-22T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-23T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-24T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-26T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-30T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-31T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-11-13T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2023-11-28T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-12-14T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-02-04T23:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-02-12T23:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-03-04T23:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von ORACLE aufgenommen"
        }
      ],
      "status": "final",
      "version": "14"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c= v6.2-rc1",
                "product": {
                  "name": "Open Source Linux Kernel \u003c= v6.2-rc1",
                  "product_id": "T029958",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:linux:linux_kernel:v6.2-rc1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux Kernel"
          }
        ],
        "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": "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-2023-42752",
      "notes": [
        {
          "category": "description",
          "text": "Im Linux-Kernel existiert eine Schwachstelle. Dieser Fehler besteht, weil der Kernel `skb_shared_info` im Userspace alloziert und dabei in `__alloc_skb` nicht ausreichend auf einen m\u00f6glichen Integer Overflow pr\u00fcft. Dies kann auf Systemen ohne SMAP-Schutz ausgenutzt werden. Ein Angreifer kann diese Schwachstelle ausnutzen, um vertrauliche Informationen offenzulegen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T000126",
          "T004914"
        ],
        "last_affected": [
          "T029958"
        ]
      },
      "release_date": "2023-09-18T22:00:00Z",
      "title": "CVE-2023-42752"
    }
  ]
}


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