wid-sec-w-2024-0326
Vulnerability from csaf_certbund
Published
2024-02-08 23:00
Modified
2024-05-14 22:00
Summary
Linux "Shim": Schwachstelle ermöglicht Übernahme der Kontrolle

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 anonymer Angreifer aus dem angrenzenden Netzwerk kann eine Schwachstelle in der "Shim" Komponente von Linux-Systemen ausnutzen, um die Kontrolle über ein betroffenes System zu übernehmen.
Betroffene Betriebssysteme
- 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": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein anonymer Angreifer aus dem angrenzenden Netzwerk kann eine Schwachstelle in der \"Shim\" Komponente von Linux-Systemen ausnutzen, um die Kontrolle \u00fcber ein betroffenes System zu \u00fcbernehmen.",
        "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-2024-0326 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0326.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-0326 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0326"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2024-2484 vom 2024-03-05",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2024-2484.html"
      },
      {
        "category": "external",
        "summary": "Red Hat CVE-2023-40547 vom 2024-02-08",
        "url": "https://access.redhat.com/security/cve/CVE-2023-40547"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:1883 vom 2024-04-18",
        "url": "https://access.redhat.com/errata/RHSA-2024:1883"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:1873 vom 2024-04-18",
        "url": "https://access.redhat.com/errata/RHSA-2024:1873"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:1876 vom 2024-04-18",
        "url": "https://access.redhat.com/errata/RHSA-2024:1876"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:1902 vom 2024-04-18",
        "url": "https://access.redhat.com/errata/RHSA-2024:1902"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:1903 vom 2024-04-18",
        "url": "https://access.redhat.com/errata/RHSA-2024:1903"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2024:1368-1 vom 2024-04-22",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-April/018392.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:1959 vom 2024-04-23",
        "url": "https://access.redhat.com/errata/RHSA-2024:1959"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-1903 vom 2024-04-24",
        "url": "http://linux.oracle.com/errata/ELSA-2024-1903.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2024:1461-1 vom 2024-04-29",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-April/018437.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2024:1462-1 vom 2024-04-29",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-April/018436.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3813 vom 2024-05-14",
        "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux \"Shim\": Schwachstelle erm\u00f6glicht \u00dcbernahme der Kontrolle",
    "tracking": {
      "current_release_date": "2024-05-14T22:00:00.000+00:00",
      "generator": {
        "date": "2024-05-15T09:34:02.806+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2024-0326",
      "initial_release_date": "2024-02-08T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-02-08T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2024-03-04T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2024-04-17T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-04-22T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE und Red Hat aufgenommen"
        },
        {
          "date": "2024-04-24T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-04-29T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2024-05-14T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Debian aufgenommen"
        }
      ],
      "status": "final",
      "version": "7"
    }
  },
  "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": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "shim \u003c15.8",
                "product": {
                  "name": "Open Source Linux shim \u003c15.8",
                  "product_id": "T032628",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:open_source:linux:shim__15.8"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux"
          }
        ],
        "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": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "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-2023-40547",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle im Linux-Kernel. Dieser Fehler besteht in der Bootloader-Shim-Komponente, wenn die http-Boot-Unterst\u00fctzung (httpboot.c) eine HTTP-Antwort parst, was zu einem kontrollierten Out-of-bounds-Write f\u00fchren kann. W\u00e4hrend ein betroffenes System bootet, kann ein anonymer Angreifer aus dem angrenzenden Netzwerk diese Schwachstelle zur \u00dcbernahme der Kontrolle ausnutzen."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "398363",
          "T004914"
        ]
      },
      "release_date": "2024-02-08T23:00:00Z",
      "title": "CVE-2023-40547"
    }
  ]
}


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