wid-sec-w-2022-2392
Vulnerability from csaf_certbund
Published
2020-11-16 23:00
Modified
2022-12-22 23:00
Summary
Linux Kernel: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

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 entfernter, anonymer Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Betroffene Betriebssysteme
- Linux



{
  "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 entfernter, anonymer Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "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-2022-2392 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-2392.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-2392 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-2392"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 6851393 vom 2022-12-23",
        "url": "https://www.ibm.com/support/pages/node/6851393"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 6848581 vom 2022-12-22",
        "url": "https://www.ibm.com/support/pages/node/6848581"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:1531 vom 2021-05-11",
        "url": "https://access.redhat.com/errata/RHSA-2021:1531"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2021-021 vom 2021-03-31",
        "url": "https://downloads.avaya.com/css/P8/documents/101074878"
      },
      {
        "category": "external",
        "summary": "NIST Vulnerability Database vom 2020-11-16",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25705"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3484-1 vom 2020-11-23",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007841.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3491-1 vom 2020-11-23",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007842.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3503-1 vom 2020-11-24",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007846.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3507-1 vom 2020-11-24",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007848.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3507-1 vom 2020-11-24",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007849.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3512-1 vom 2020-11-25",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007853.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3522-1 vom 2020-11-25",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007856.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3513-1 vom 2020-11-25",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007854.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3544-1 vom 2020-11-26",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007876.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3544-1 vom 2020-11-26",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007878.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3532-1 vom 2020-11-26",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007871.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3532-1 vom 2020-11-26",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-November/007874.html"
      },
      {
        "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": "SUSE Security Update SUSE-SU-2020:3670-1 vom 2020-12-07",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007929.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3690-1 vom 2020-12-07",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007926.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2020:3651-1 vom 2020-12-07",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/007930.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": "Debian Security Advisory DLA-2483 vom 2020-12-10",
        "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.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-4659-2 vom 2020-12-14",
        "url": "https://ubuntu.com/security/notices/USN-4659-2"
      },
      {
        "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": "Ubuntu Security Notice USN-4658-2 vom 2020-12-14",
        "url": "https://ubuntu.com/security/notices/USN-4658-2"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2494 vom 2020-12-18",
        "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html"
      },
      {
        "category": "external",
        "summary": "F5 Security Advisory K09604370 vom 2020-12-23",
        "url": "https://support.f5.com/csp/article/K09604370"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4680-1 vom 2021-01-06",
        "url": "https://ubuntu.com/security/notices/USN-4680-1"
      },
      {
        "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 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-2021-9007 vom 2021-01-13",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9007.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-2021-9006 vom 2021-01-12",
        "url": "http://linux.oracle.com/errata/ELSA-2021-9006.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": "Red Hat Security Advisory RHSA-2021:0558 vom 2021-02-16",
        "url": "https://access.redhat.com/errata/RHSA-2021:0558"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:0537 vom 2021-02-16",
        "url": "https://access.redhat.com/errata/RHSA-2021:0537"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-0558 vom 2021-02-17",
        "url": "https://linux.oracle.com/errata/ELSA-2021-0558.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:0686 vom 2021-03-02",
        "url": "https://access.redhat.com/errata/RHSA-2021:0686"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2164 vom 2021-06-01",
        "url": "https://access.redhat.com/errata/RHSA-2021:2164"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:0774 vom 2021-03-09",
        "url": "https://access.redhat.com/errata/RHSA-2021:0774"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:0765 vom 2021-03-09",
        "url": "https://access.redhat.com/errata/RHSA-2021:0765"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:0856 vom 2021-03-16",
        "url": "https://access.redhat.com/errata/RHSA-2021:0856"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:0857 vom 2021-03-16",
        "url": "https://access.redhat.com/errata/RHSA-2021:0857"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2021-0856 vom 2021-03-18",
        "url": "http://linux.oracle.com/errata/ELSA-2021-0856.html"
      },
      {
        "category": "external",
        "summary": "CentOS Security Advisory CESA-2021:0856 vom 2021-03-19",
        "url": "http://centos-announce.2309468.n4.nabble.com/CentOS-announce-CESA-2021-0856-Important-CentOS-7-kernel-Security-Update-tp4646164.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:2355 vom 2021-06-09",
        "url": "https://access.redhat.com/errata/RHSA-2021:2355"
      },
      {
        "category": "external",
        "summary": "Juniper Security Advisory JSA11206 vom 2021-07-14",
        "url": "https://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA11206\u0026cat=SIRT_1"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2022-12-22T23:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T17:07:52.061+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2022-2392",
      "initial_release_date": "2020-11-16T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2020-11-16T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2020-11-23T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-11-24T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-11-25T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-11-26T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-12-01T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2020-12-07T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-12-09T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2020-12-10T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Debian und SUSE aufgenommen"
        },
        {
          "date": "2020-12-13T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Ubuntu und SUSE aufgenommen"
        },
        {
          "date": "2020-12-20T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2020-12-23T23:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von F5 aufgenommen"
        },
        {
          "date": "2021-01-05T23:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-01-07T23:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-01-10T23:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von ORACLE aufgenommen"
        },
        {
          "date": "2021-01-12T23:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-02-16T23:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-02-17T23:00:00.000+00:00",
          "number": "18",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-03-01T23:00:00.000+00:00",
          "number": "19",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-03-08T23:00:00.000+00:00",
          "number": "20",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-03-16T23:00:00.000+00:00",
          "number": "21",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-03-17T23:00:00.000+00:00",
          "number": "22",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2021-03-18T23:00:00.000+00:00",
          "number": "23",
          "summary": "Neue Updates von CentOS aufgenommen"
        },
        {
          "date": "2021-04-05T22:00:00.000+00:00",
          "number": "24",
          "summary": "Neue Updates von AVAYA aufgenommen"
        },
        {
          "date": "2021-05-11T22:00:00.000+00:00",
          "number": "25",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-05-31T22:00:00.000+00:00",
          "number": "26",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-06-08T22:00:00.000+00:00",
          "number": "27",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-07-14T22:00:00.000+00:00",
          "number": "28",
          "summary": "Neue Updates von Juniper aufgenommen"
        },
        {
          "date": "2022-12-21T23:00:00.000+00:00",
          "number": "29",
          "summary": "Neue Updates von IBM aufgenommen"
        },
        {
          "date": "2022-12-22T23:00:00.000+00:00",
          "number": "30",
          "summary": "Neue Updates von IBM aufgenommen"
        }
      ],
      "status": "final",
      "version": "30"
    }
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  "product_tree": {
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                "category": "product_name",
                "name": "IBM DataPower Gateway 2018.4.1.24",
                "product": {
                  "name": "IBM DataPower Gateway 2018.4.1.24",
                  "product_id": "T025692",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:datapower_gateway:2018.4.1.24"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "DataPower Gateway"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "IBM MQ Appliance 9.2 CD",
                "product": {
                  "name": "IBM MQ Appliance 9.2 CD",
                  "product_id": "T023854",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:mq:appliance_9.2_cd"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "IBM MQ Appliance 9.2 LTS",
                "product": {
                  "name": "IBM MQ Appliance 9.2 LTS",
                  "product_id": "T023855",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:mq:appliance_9.2_lts"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "MQ"
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Juniper JUNOS",
            "product": {
              "name": "Juniper JUNOS",
              "product_id": "5930",
              "product_identification_helper": {
                "cpe": "cpe:/o:juniper:junos:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Juniper"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source CentOS",
            "product": {
              "name": "Open Source CentOS",
              "product_id": "1727",
              "product_identification_helper": {
                "cpe": "cpe:/o:centos:centos:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Open Source Linux Kernel \u003c 5.10",
            "product": {
              "name": "Open Source Linux Kernel \u003c 5.10",
              "product_id": "T017707",
              "product_identification_helper": {
                "cpe": "cpe:/o:linux:linux_kernel:5.10"
              }
            }
          }
        ],
        "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-2020-25705",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle im Linux Kernel. Aufgrund einer ungen\u00fcgenden Einschr\u00e4nkung von ICMP Paketen k\u00f6nnen UDP Ports schnell gescannt werden. Ein entfernter anonymer Angreifer kann diese Schwachstelle ausnutzen, um die UDP-Randomisierung des Quellport-UDP effektiv zu umgehen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T025691",
          "T015518",
          "67646",
          "T015516",
          "T015127",
          "T015126",
          "T004914",
          "T016243",
          "2951",
          "T002207",
          "T000126",
          "T023854",
          "T023855",
          "5930",
          "T001663",
          "1727",
          "T025692"
        ]
      },
      "release_date": "2020-11-16T23:00:00Z",
      "title": "CVE-2020-25705"
    }
  ]
}


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