WID-SEC-W-2024-0698

Vulnerability from csaf_certbund - Published: 2021-05-26 22:00 - Updated: 2024-06-10 22:00
Summary
Linux Kernel: Schwachstelle ermöglicht Privilegieneskalation

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 seine Privilegien zu erhöhen.
Betroffene Betriebssysteme
- Linux - UNIX
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 seine Privilegien zu erh\u00f6hen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX",
        "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-2024-0698 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2024-0698.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-0698 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0698"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4983-1 vom 2021-06-03",
        "url": "https://ubuntu.com/security/notices/USN-4983-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1913-1 vom 2021-06-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008973.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1912-1 vom 2021-06-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008974.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1887-1 vom 2021-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008955.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1888-1 vom 2021-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008950.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1891-1 vom 2021-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008946.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1890-1 vom 2021-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008947.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1889-1 vom 2021-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008956.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1899-1 vom 2021-06-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/008965.html"
      },
      {
        "category": "external",
        "summary": "Seclists.org - CVE-2021-33200 vom 2021-05-26",
        "url": "http://seclists.org/oss-sec/2021/q2/171"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1975-1 vom 2021-06-15",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/009015.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1977-1 vom 2021-06-15",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/009018.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:2027-1 vom 2021-06-18",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/009046.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:2020-1 vom 2021-06-18",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/009044.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5000-1 vom 2021-06-23",
        "url": "https://ubuntu.com/security/notices/USN-5000-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4999-1 vom 2021-06-23",
        "url": "https://ubuntu.com/security/notices/USN-4999-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4997-1 vom 2021-06-23",
        "url": "https://ubuntu.com/security/notices/USN-4997-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5000-2 vom 2021-06-25",
        "url": "https://ubuntu.com/security/notices/USN-5000-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4997-2 vom 2021-06-25",
        "url": "https://ubuntu.com/security/notices/USN-4997-2"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:2208-1 vom 2021-06-30",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/009103.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2021-1675 vom 2021-07-02",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2021-1675.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2021-1516 vom 2021-07-13",
        "url": "https://alas.aws.amazon.com/ALAS-2021-1516.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5018-1 vom 2021-07-21",
        "url": "https://ubuntu.com/security/notices/USN-5018-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:2421-1 vom 2021-07-21",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-July/009183.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:2427-1 vom 2021-07-21",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-July/009190.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALASLIVEPATCH-2021-054 vom 2021-07-21",
        "url": "https://alas.aws.amazon.com/AL2/ALASLIVEPATCH-2021-054.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:2422-1 vom 2021-07-21",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-July/009191.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:4356 vom 2021-11-09",
        "url": "https://access.redhat.com/errata/RHSA-2021:4356"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2024:0975-1 vom 2024-03-22",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-March/018186.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2024:0925-1 vom 2024-03-22",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-March/018205.html"
      },
      {
        "category": "external",
        "summary": "Dell Security Advisory DSA-2024-269 vom 2024-06-11",
        "url": "https://www.dell.com/support/kbdoc/de-de/000225942/dsa-2024-269-security-update-for-dell-networker-vproxy-linux-kernel-vulnerabilities"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Privilegieneskalation",
    "tracking": {
      "current_release_date": "2024-06-10T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T18:06:48.013+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2024-0698",
      "initial_release_date": "2021-05-26T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-05-26T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-06-03T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-06-08T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-09T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-15T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-20T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-06-22T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-06-27T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-06-30T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-07-01T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2021-07-12T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2021-07-20T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-07-21T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von SUSE und Amazon aufgenommen"
        },
        {
          "date": "2021-11-09T23:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-03-24T23:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2024-06-10T22:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Dell aufgenommen"
        }
      ],
      "status": "final",
      "version": "16"
    }
  },
  "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": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "vProxy",
                "product": {
                  "name": "Dell NetWorker vProxy",
                  "product_id": "T035332",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:dell:networker:vproxy"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "NetWorker"
          }
        ],
        "category": "vendor",
        "name": "Dell"
      },
      {
        "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": "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"
      },
      {
        "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-2021-33200",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle im Linux Kernel. Der Fehler besteht aufgrund von Out-of-Bounds-Lese- und Schreibvorg\u00e4ngen im Kernel-Speicher. Diese treten im BPF-Subsystem auf. Ein lokaler, authentifizierter Angreifer kann diese Sicherheitsanf\u00e4lligkeit ausnutzen, um seine Privilegien zu erweitern."
        }
      ],
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "6368",
          "T000126",
          "398363",
          "T035332"
        ]
      },
      "release_date": "2021-05-26T22:00:00.000+00:00",
      "title": "CVE-2021-33200"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.