wid-sec-w-2022-0493
Vulnerability from csaf_certbund
Published
2020-11-17 23:00
Modified
2022-12-20 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 - Applicance


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\n- Applicance",
        "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-2022-0493 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-0493.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-0493 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0493"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 6847643 vom 2022-12-20",
        "url": "https://www.ibm.com/support/pages/node/6847643"
      },
      {
        "category": "external",
        "summary": "NIST Vulnerability Database vom 2020-11-17",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28915"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4659-1 vom 2020-12-02",
        "url": "https://ubuntu.com/security/notices/USN-4659-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4657-1 vom 2020-12-02",
        "url": "https://ubuntu.com/security/notices/USN-4657-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4658-1 vom 2020-12-02",
        "url": "https://ubuntu.com/security/notices/USN-4658-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4660-1 vom 2020-12-03",
        "url": "https://ubuntu.com/security/notices/USN-4660-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3715-1 vom 2020-12-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007938.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3713-1 vom 2020-12-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007937.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3714-1 vom 2020-12-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007939.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3718-1 vom 2020-12-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007941.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3718-1 vom 2020-12-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007943.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3717-1 vom 2020-12-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007942.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3717-1 vom 2020-12-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007940.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3748-1 vom 2020-12-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007962.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3748-1 vom 2020-12-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007964.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4658-2 vom 2020-12-14",
        "url": "https://ubuntu.com/security/notices/USN-4658-2"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3764-1 vom 2020-12-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007977.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3766-1 vom 2020-12-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007978.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4660-2 vom 2020-12-14",
        "url": "https://ubuntu.com/security/notices/USN-4660-2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4659-2 vom 2020-12-14",
        "url": "https://ubuntu.com/security/notices/USN-4659-2"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2020-5996 vom 2020-12-15",
        "url": "http://linux.oracle.com/errata/ELSA-2020-5996.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3798-1 vom 2020-12-15",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/008066.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9002 vom 2021-01-07",
        "url": "https://linux.oracle.com/errata/ELSA-2021-9002.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9001 vom 2021-01-07",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9001.html"
      },
      {
        "category": "external",
        "summary": "ORACLE OVMSA-2021-0001 vom 2021-01-08",
        "url": "https://oss.oracle.com/pipermail/oraclevm-errata/2021-January/001008.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9008 vom 2021-01-12",
        "url": "https://linux.oracle.com/errata/ELSA-2021-9008.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9007 vom 2021-01-13",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9007.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9005 vom 2021-01-13",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9005.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-9043 vom 2021-02-09",
        "url": "https://linux.oracle.com/errata/ELSA-2021-9043.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0438-1 vom 2021-02-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-February/008317.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0437-1 vom 2021-02-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-February/008312.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0434-1 vom 2021-02-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-February/008308.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0452-1 vom 2021-02-12",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-February/008323.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:14630-1 vom 2021-02-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-February/008335.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4752-1 vom 2021-02-25",
        "url": "https://ubuntu.com/security/notices/USN-4752-1"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:5344 vom 2022-06-28",
        "url": "https://access.redhat.com/errata/RHSA-2022:5344"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:5316 vom 2022-07-01",
        "url": "https://access.redhat.com/errata/RHSA-2022:5316"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-5316 vom 2022-07-02",
        "url": "https://linux.oracle.com/errata/ELSA-2022-5316.html"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2022-101 vom 2022-07-13",
        "url": "https://downloads.avaya.com/css/P8/documents/101082638"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Offenlegung von Informationen",
    "tracking": {
      "current_release_date": "2022-12-20T23:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T16:50:17.391+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2022-0493",
      "initial_release_date": "2020-11-17T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2020-11-17T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2020-12-01T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2020-12-02T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2020-12-08T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-12-09T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-12-10T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-12-13T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Ubuntu und SUSE aufgenommen"
        },
        {
          "date": "2020-12-14T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Oracle Linux und SUSE aufgenommen"
        },
        {
          "date": "2021-01-07T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-01-10T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von ORACLE aufgenommen"
        },
        {
          "date": "2021-01-12T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-02-09T23:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-02-11T23:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-02-14T23:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-02-16T23:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-02-24T23:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2022-06-28T22:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-06-30T22:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-07-03T22:00:00.000+00:00",
          "number": "19",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2022-07-14T22:00:00.000+00:00",
          "number": "20",
          "summary": "Neue Updates von AVAYA aufgenommen"
        },
        {
          "date": "2022-12-20T23:00:00.000+00:00",
          "number": "21",
          "summary": "Neue Updates von IBM aufgenommen"
        }
      ],
      "status": "final",
      "version": "21"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Avaya Aura Application Enablement Services",
            "product": {
              "name": "Avaya Aura Application Enablement Services",
              "product_id": "T015516",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_application_enablement_services:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura Communication Manager",
            "product": {
              "name": "Avaya Aura Communication Manager",
              "product_id": "T015126",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:communication_manager:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura Device Services",
            "product": {
              "name": "Avaya Aura Device Services",
              "product_id": "T015517",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_device_services:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura Experience Portal",
            "product": {
              "name": "Avaya Aura Experience Portal",
              "product_id": "T015519",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_experience_portal:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura Session Manager",
            "product": {
              "name": "Avaya Aura Session Manager",
              "product_id": "T015127",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:session_manager:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura System Manager",
            "product": {
              "name": "Avaya Aura System Manager",
              "product_id": "T015518",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_system_manager:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Avaya"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "IBM Spectrum Protect 10.1",
            "product": {
              "name": "IBM Spectrum Protect 10.1",
              "product_id": "T023657",
              "product_identification_helper": {
                "cpe": "cpe:/a:ibm:spectrum_protect:10.1"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Linux Kernel \u003c 5.8.15",
            "product": {
              "name": "Open Source Linux Kernel \u003c 5.8.15",
              "product_id": "826223",
              "product_identification_helper": {
                "cpe": "cpe:/o:linux:linux_kernel:5.8.15"
              }
            }
          }
        ],
        "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"
      },
      {
        "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-2020-28915",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle im Linux Kernel. Hierbei handelt es sich um einen \"Buffer over read\" Fehler im \"fbcon\" Code. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um Informationen aus dem Kernel-Speicher offenzulegen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T015519",
          "T015518",
          "T002207",
          "T015517",
          "67646",
          "T015516",
          "T000126",
          "T023657",
          "T015127",
          "T015126",
          "T004914"
        ]
      },
      "release_date": "2020-11-17T23:00:00Z",
      "title": "CVE-2020-28915"
    }
  ]
}


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Sightings

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