wid-sec-w-2024-1439
Vulnerability from csaf_certbund
Published
2021-07-20 22:00
Modified
2024-06-24 22:00
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": "niedrig"
    },
    "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-2024-1439 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2024-1439.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-1439 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1439"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Adivisory: CVE-2021-3655 vom 2021-07-20",
        "url": "https://access.redhat.com/security/cve/CVE-2021-3655"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2021-1696 vom 2021-08-06",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2021-1696.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9460 vom 2021-09-22",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9460.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9459 vom 2021-09-22",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9459.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9458 vom 2021-09-22",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9458.html"
      },
      {
        "category": "external",
        "summary": "ORACLE OVMSA-2021-0031 vom 2021-09-22",
        "url": "https://oss.oracle.com/pipermail/oraclevm-errata/2021-September/001030.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2021-1539 vom 2021-10-05",
        "url": "https://alas.aws.amazon.com/ALAS-2021-1539.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9473 vom 2021-10-08",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9473.html"
      },
      {
        "category": "external",
        "summary": "ORACLE OVMSA-2021-0035 vom 2021-10-12",
        "url": "https://oss.oracle.com/pipermail/oraclevm-errata/2021-October/001033.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9488 vom 2021-10-15",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9488.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9485 vom 2021-10-15",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9485.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5136-1 vom 2021-11-09",
        "url": "https://ubuntu.com/security/notices/USN-5136-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3641-1 vom 2021-11-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009709.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3640-1 vom 2021-11-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009710.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3642-1 vom 2021-11-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009708.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2785 vom 2021-10-16",
        "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5139-1 vom 2021-11-11",
        "url": "https://ubuntu.com/security/notices/USN-5139-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3658-1 vom 2021-11-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009719.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3655-1 vom 2021-11-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009720.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3675-1 vom 2021-11-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009734.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3723-1 vom 2021-11-17",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009737.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3748-1 vom 2021-11-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009756.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3754-1 vom 2021-11-20",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-November/009757.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5162-1 vom 2021-12-01",
        "url": "https://ubuntu.com/security/notices/USN-5162-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5161-1 vom 2021-12-01",
        "url": "https://ubuntu.com/security/notices/USN-5161-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5163-1 vom 2021-12-01",
        "url": "https://ubuntu.com/security/notices/USN-5163-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:14849-1 vom 2021-12-01",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009784.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3876-1 vom 2021-12-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009810.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3929-1 vom 2021-12-06",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009844.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3935-1 vom 2021-12-06",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009856.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3969-1 vom 2021-12-07",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009871.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:3972-1 vom 2021-12-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-December/009872.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2843 vom 2021-12-16",
        "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALASKERNEL-5.4-2022-008 vom 2022-01-31",
        "url": "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2022-008.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALASKERNEL-5.4-2022-006 vom 2022-01-31",
        "url": "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2022-006.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALASKERNEL-5.10-2022-004 vom 2022-01-31",
        "url": "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.10-2022-004.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALASKERNEL-5.4-2024-073 vom 2024-06-25",
        "url": "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2024-073.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Offenlegung von Informationen",
    "tracking": {
      "current_release_date": "2024-06-24T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T18:10:29.800+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2024-1439",
      "initial_release_date": "2021-07-20T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-07-20T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-08-05T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2021-09-22T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Oracle Linux und ORACLE aufgenommen"
        },
        {
          "date": "2021-10-04T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2021-10-10T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-10-11T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von ORACLE aufgenommen"
        },
        {
          "date": "2021-10-14T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-10-17T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2021-11-08T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-11-09T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-10T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-11-11T23:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-16T23:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-17T23:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-21T23:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-11-30T23:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-12-01T23:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-12-02T23:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-12-06T23:00:00.000+00:00",
          "number": "19",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-12-07T23:00:00.000+00:00",
          "number": "20",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-12-08T23:00:00.000+00:00",
          "number": "21",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-12-16T23:00:00.000+00:00",
          "number": "22",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2022-01-30T23:00:00.000+00:00",
          "number": "23",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2024-06-24T22:00:00.000+00:00",
          "number": "24",
          "summary": "Neue Updates von Amazon aufgenommen"
        }
      ],
      "status": "final",
      "version": "24"
    }
  },
  "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": [
          {
            "category": "product_name",
            "name": "Open Source Linux Kernel",
            "product": {
              "name": "Open Source Linux Kernel",
              "product_id": "6368",
              "product_identification_helper": {
                "cpe": "cpe:/o:linux: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": "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-2021-3655",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle im Linux Kernel. Grund f\u00fcr diese Schwachstelle ist eine unzureichende Kontrolle der Gr\u00f6\u00dfe von SCTP-Paketen. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um Informationen offenzulegen."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "6368",
          "T000126",
          "398363",
          "T004914"
        ]
      },
      "release_date": "2021-07-20T22:00:00.000+00:00",
      "title": "CVE-2021-3655"
    }
  ]
}


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