{
  "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 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."
    }, {
      "category" : "description",
      "text" : "Squid ist ein Open-Source Web Proxy Cache für Unix und Windows Plattformen. Die Software unterstützt Proxying und Caching von HTTP, FTP und anderen Protokollen, sowie SSL und Access Control Lists.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Squid ausnutzen, um einen Denial of Service Angriff durchzuführen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Linux\n- Windows",
      "title" : "Betroffene Betriebssysteme"
    } ],
    "publisher" : {
      "category" : "other",
      "contact_details" : "csaf-provider@cert-bund.de",
      "name" : "Bundesamt für Sicherheit in der Informationstechnik",
      "namespace" : "https://www.bsi.bund.de"
    },
    "references" : [ {
      "category" : "self",
      "summary" : "WID-SEC-W-2023-0456 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2023-0456.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2023-0456 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-0456"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALASSQUID4-2023-004 vom 2023-09-27",
      "url" : "https://alas.aws.amazon.com/AL2/ALASSQUID4-2023-004.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-4981-1 vom 2021-06-03",
      "url" : "https://ubuntu.com/security/notices/USN-4981-1"
    }, {
      "category" : "external",
      "summary" : "Red Hat Bugzilla Bug 1962597 vom 2021-05-20",
      "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1962597"
    }, {
      "category" : "external",
      "summary" : "Gentoo Linux Security Advisory GLSA-202105-14 vom 2021-05-26",
      "url" : "https://www.cybersecurity-help.cz/vdb/SB2021052636"
    }, {
      "category" : "external",
      "summary" : "Github SQUID vom 2021-05-26",
      "url" : "https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DSA-4924 vom 2021-06-01",
      "url" : "https://lists.debian.org/debian-security-announce/2021/msg00107.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-2685 vom 2021-06-14",
      "url" : "https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html"
    }, {
      "category" : "external",
      "summary" : "Oracle Linux Security Advisory ELSA-2021-9465 vom 2021-09-25",
      "url" : "https://linux.oracle.com/errata/ELSA-2021-9465.html"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2021:4292 vom 2021-11-09",
      "url" : "https://access.redhat.com/errata/RHSA-2021:4292"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALAS-2023-1950 vom 2023-02-22",
      "url" : "https://alas.aws.amazon.com/AL2/ALAS-2023-1950.html"
    } ],
    "source_lang" : "en-US",
    "title" : "Squid: Schwachstelle ermöglicht Denial of Service",
    "tracking" : {
      "current_release_date" : "2023-09-27T22:00:00.000+00:00",
      "generator" : {
        "date" : "2024-08-15T17:44:38.559+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.3.5"
        }
      },
      "id" : "WID-SEC-W-2023-0456",
      "initial_release_date" : "2021-05-19T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2021-05-19T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2021-05-26T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates von Gentoo aufgenommen"
      }, {
        "date" : "2021-06-01T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2021-06-03T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2021-06-13T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2021-09-26T22:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von Oracle Linux aufgenommen"
      }, {
        "date" : "2021-11-09T23:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      }, {
        "date" : "2023-02-22T23:00:00.000+00:00",
        "number" : "8",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2023-09-27T22:00:00.000+00:00",
        "number" : "9",
        "summary" : "Neue Updates von Amazon aufgenommen"
      } ],
      "status" : "final",
      "version" : "9"
    }
  },
  "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" : [ {
        "category" : "product_name",
        "name" : "Debian Linux",
        "product" : {
          "name" : "Debian Linux",
          "product_id" : "2951",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:debian:debian_linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Debian"
    }, {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Gentoo Linux",
        "product" : {
          "name" : "Gentoo Linux",
          "product_id" : "T012167",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:gentoo:linux:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Gentoo"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_name",
          "name" : "Open Source Squid < 4.15",
          "product" : {
            "name" : "Open Source Squid < 4.15",
            "product_id" : "T019291",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:squid-cache:squid:4.15"
            }
          }
        }, {
          "category" : "product_name",
          "name" : "Open Source Squid < 5.0.6",
          "product" : {
            "name" : "Open Source Squid < 5.0.6",
            "product_id" : "T019292",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:squid-cache:squid:5.0.6"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Squid"
      } ],
      "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" : "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-2021-31807",
    "notes" : [ {
      "category" : "description",
      "text" : "Es existiert eine Schwachstelle in Squid aufgrund von Fehlern in der Speicherverwaltung. Ein entfernter Angreifer kann dies für einen Denial of Service Angriff ausnutzen."
    } ],
    "product_status" : {
      "known_affected" : [ "2951", "67646", "T000126", "398363", "T012167", "T004914" ]
    },
    "release_date" : "2021-05-19T22:00:00.000+00:00",
    "title" : "CVE-2021-31807"
  } ]
}