WID-SEC-W-2026-3127

Vulnerability from csaf_certbund - Published: 2021-03-14 23:00 - Updated: 2026-08-31 22:00
Summary
GnuTLS: Mehrere Schwachstellen
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: GnuTLS (GNU Transport Layer Security Library) ist eine im Quelltext frei verfügbare Bibliothek, die Secure Sockets Layer (SSL) und Transport Layer Security (TLS) implementiert.
Angriff: Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GnuTLS ausnutzen, um beliebigen Programmcode auszuführen oder einen Denial of Service State herbeizuführen.
Betroffene Betriebssysteme: - Linux - Sonstiges - UNIX - Windows
CVE-2021-20231
Affected products
Product Identifier Version Remediation
Dell Secure Connect Gateway <5.36.00.16
Dell / Secure Connect Gateway
 <5.36.00.16
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
NetApp ActiveIQ Unified Manager
NetApp
 cpe:/a:netapp:active_iq_unified_manager:-::~~~vmware_vsphere~~ —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Open Source GnuTLS <3.7.1
Open Source / GnuTLS
 <3.7.1
CVE-2021-20232
Affected products
Product Identifier Version Remediation
Dell Secure Connect Gateway <5.36.00.16
Dell / Secure Connect Gateway
 <5.36.00.16
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
NetApp ActiveIQ Unified Manager
NetApp
 cpe:/a:netapp:active_iq_unified_manager:-::~~~vmware_vsphere~~ —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
Open Source GnuTLS <3.7.1
Open Source / GnuTLS
 <3.7.1
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": "GnuTLS (GNU Transport Layer Security Library) ist eine im Quelltext frei verf\u00fcgbare Bibliothek, die Secure Sockets Layer (SSL) und Transport Layer Security (TLS) implementiert.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GnuTLS ausnutzen, um beliebigen Programmcode auszuf\u00fchren oder einen Denial of Service State herbeizuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- Sonstiges\n- UNIX\n- Windows",
        "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-2026-3127 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2026-3127.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-3127 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3127"
      },
      {
        "category": "external",
        "summary": "The GnuTLS Transport Layer Security Library vom 2021-03-14",
        "url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-03-10"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2021-18BEF34F05 vom 2021-03-16",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2021-18bef34f05"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0935-1 vom 2021-03-24",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-March/008548.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0934-1 vom 2021-03-24",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-March/008545.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:1109-1 vom 2021-04-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-April/008603.html"
      },
      {
        "category": "external",
        "summary": "NetApp Security Advisory NTAP-20210416-0005 vom 2021-04-16",
        "url": "https://security.netapp.com/advisory/ntap-20210416-0005/"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5029-1 vom 2021-08-02",
        "url": "https://ubuntu.com/security/notices/USN-5029-1"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:4451 vom 2021-11-09",
        "url": "https://access.redhat.com/errata/RHSA-2021:4451"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:4848 vom 2021-11-29",
        "url": "https://access.redhat.com/errata/RHSA-2021:4848"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:4845 vom 2021-11-29",
        "url": "https://access.redhat.com/errata/RHSA-2021:4845"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:0318 vom 2022-01-27",
        "url": "https://access.redhat.com/errata/RHSA-2022:0318"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:0434 vom 2022-02-04",
        "url": "https://access.redhat.com/errata/RHSA-2022:0434"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-9221 vom 2022-03-17",
        "url": "https://linux.oracle.com/errata/ELSA-2022-9221.html"
      },
      {
        "category": "external",
        "summary": "Dell Security Advisory DSA-2026-386 vom 2026-09-01",
        "url": "https://www.dell.com/support/kbdoc/000503504/dsa-2026-386-security-update-f"
      }
    ],
    "source_lang": "en-US",
    "title": "GnuTLS: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-08-31T22:00:00.000+00:00",
      "generator": {
        "date": "2026-09-01T10:52:46.289+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-3127",
      "initial_release_date": "2021-03-14T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-03-14T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-03-16T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2021-03-24T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-04-08T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2021-04-15T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von NetApp aufgenommen"
        },
        {
          "date": "2021-08-02T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2021-11-09T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-11-29T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-01-27T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-02-03T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-03-17T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2026-08-31T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Dell aufgenommen"
        }
      ],
      "status": "final",
      "version": "12"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c5.36.00.16",
                "product": {
                  "name": "Dell Secure Connect Gateway \u003c5.36.00.16",
                  "product_id": "T058878"
                }
              },
              {
                "category": "product_version",
                "name": "5.36.00.16",
                "product": {
                  "name": "Dell Secure Connect Gateway 5.36.00.16",
                  "product_id": "T058878-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:dell:secure_connect_gateway:5.36.00.16"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Secure Connect Gateway"
          }
        ],
        "category": "vendor",
        "name": "Dell"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "NetApp ActiveIQ Unified Manager",
            "product": {
              "name": "NetApp ActiveIQ Unified Manager",
              "product_id": "658714",
              "product_identification_helper": {
                "cpe": "cpe:/a:netapp:active_iq_unified_manager:-::~~~vmware_vsphere~~"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "NetApp"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c3.7.1",
                "product": {
                  "name": "Open Source GnuTLS \u003c3.7.1",
                  "product_id": "T018596"
                }
              },
              {
                "category": "product_version",
                "name": "3.7.1",
                "product": {
                  "name": "Open Source GnuTLS 3.7.1",
                  "product_id": "T018596-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:gnu:gnutls:3.7.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "GnuTLS"
          }
        ],
        "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-2021-20231",
      "product_status": {
        "known_affected": [
          "T058878",
          "T002207",
          "67646",
          "T000126",
          "658714",
          "T004914",
          "T018596"
        ]
      },
      "release_date": "2021-03-14T23:00:00.000+00:00",
      "title": "CVE-2021-20231"
    },
    {
      "cve": "CVE-2021-20232",
      "product_status": {
        "known_affected": [
          "T058878",
          "T002207",
          "67646",
          "T000126",
          "658714",
          "T004914",
          "T018596"
        ]
      },
      "release_date": "2021-03-14T23:00:00.000+00:00",
      "title": "CVE-2021-20232"
    }
  ]
}



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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.