WID-SEC-W-2026-0897

Vulnerability from csaf_certbund - Published: 2020-05-28 22:00 - Updated: 2026-05-31 22:00
Summary
Red Hat Enterprise Linux: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff
Severity
Mittel
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: Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution.
Angriff: Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
CVE-2020-11521
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux 7
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:7 7
Open Source CentOS
Open Source
 cpe:/o:centos:centos:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Red Hat Enterprise Linux 8
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:8 8
CVE-2020-11523
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux 7
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:7 7
Open Source CentOS
Open Source
 cpe:/o:centos:centos:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Red Hat Enterprise Linux 8
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:8 8
CVE-2020-11524
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux 7
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:7 7
Open Source CentOS
Open Source
 cpe:/o:centos:centos:- —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Red Hat Enterprise Linux 8
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:8 8
References
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": "Red Hat Enterprise Linux (RHEL) ist eine popul\u00e4re Linux-Distribution.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen nicht n\u00e4her spezifizierten Angriff durchzuf\u00fchren.",
        "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-2026-0897 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2026-0897.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0897 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0897"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2020:2334 vom 2020-05-28",
        "url": "https://access.redhat.com/errata/RHSA-2020:2334"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2020:2335 vom 2020-05-28",
        "url": "https://access.redhat.com/errata/RHSA-2020:2335"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2020:2336 vom 2020-05-28",
        "url": "https://access.redhat.com/errata/RHSA-2020:2336"
      },
      {
        "category": "external",
        "summary": "CentOS Security Advisory CESA-2020:2334 vom 2020-06-01",
        "url": "http://centos-announce.2309468.n4.nabble.com/CentOS-announce-CESA-2020-2334-Important-CentOS-7-freerdp-Security-Update-tp4645944.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2020:2354 vom 2020-06-02",
        "url": "https://access.redhat.com/errata/RHSA-2020:2354"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2020-2334 vom 2020-06-05",
        "url": "https://oss.oracle.com/pipermail/el-errata/2020-June/009996.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-4471 vom 2026-03-27",
        "url": "https://linux.oracle.com/errata/ELSA-2026-4471.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-7292 vom 2026-05-29",
        "url": "http://linux.oracle.com/errata/ELSA-2026-7292.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Red Hat Enterprise Linux: Mehrere Schwachstellen erm\u00f6glichen nicht spezifizierten Angriff",
    "tracking": {
      "current_release_date": "2026-05-31T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-01T06:37:27.983+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-0897",
      "initial_release_date": "2020-05-28T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2020-05-28T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2020-06-01T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von CentOS aufgenommen"
        },
        {
          "date": "2020-06-02T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2020-06-04T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2026-03-29T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2026-05-31T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "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": "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": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "7",
                "product": {
                  "name": "Red Hat Enterprise Linux 7",
                  "product_id": "T007578",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:7"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "8",
                "product": {
                  "name": "Red Hat Enterprise Linux 8",
                  "product_id": "T014111",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:8"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Enterprise Linux"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-11521",
      "product_status": {
        "known_affected": [
          "T007578",
          "1727",
          "T004914",
          "T014111"
        ]
      },
      "release_date": "2020-05-28T22:00:00.000+00:00",
      "title": "CVE-2020-11521"
    },
    {
      "cve": "CVE-2020-11523",
      "product_status": {
        "known_affected": [
          "T007578",
          "1727",
          "T004914",
          "T014111"
        ]
      },
      "release_date": "2020-05-28T22:00:00.000+00:00",
      "title": "CVE-2020-11523"
    },
    {
      "cve": "CVE-2020-11524",
      "product_status": {
        "known_affected": [
          "T007578",
          "1727",
          "T004914",
          "T014111"
        ]
      },
      "release_date": "2020-05-28T22:00:00.000+00:00",
      "title": "CVE-2020-11524"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.