{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2018-20843",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
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                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks)."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "UBUNTU",
                "name": "USN-4040-1",
                "url": "https://usn.ubuntu.com/4040-1/"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4040-2",
                "url": "https://usn.ubuntu.com/4040-2/"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4472",
                "url": "https://www.debian.org/security/2019/dsa-4472"
            },
            {
                "refsource": "BUGTRAQ",
                "name": "20190628 [SECURITY] [DSA 4472-1] expat security update",
                "url": "https://seclists.org/bugtraq/2019/Jun/39"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20190629 [SECURITY] [DLA 1839-1] expat security update",
                "url": "https://lists.debian.org/debian-lts-announce/2019/06/msg00028.html"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2019-18868e1715",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CEJJSQSG3KSUQY4FPVHZ7ZTT7FORMFVD/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2019-139fcda84d",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IDAUGEB3TUP6NEKJDBUBZX7N5OAUOOOK/"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2019:1777",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00039.html"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-201911-08",
                "url": "https://security.gentoo.org/glsa/201911-08"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuapr2020.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuapr2020.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuoct2020.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuoct2020.html"
            },
            {
                "url": "https://github.com/libexpat/libexpat/issues/186",
                "refsource": "MISC",
                "name": "https://github.com/libexpat/libexpat/issues/186"
            },
            {
                "url": "https://github.com/libexpat/libexpat/pull/262",
                "refsource": "MISC",
                "name": "https://github.com/libexpat/libexpat/pull/262"
            },
            {
                "url": "https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6",
                "refsource": "MISC",
                "name": "https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6"
            },
            {
                "url": "https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes",
                "refsource": "MISC",
                "name": "https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes"
            },
            {
                "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226",
                "refsource": "MISC",
                "name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20190703-0001/",
                "url": "https://security.netapp.com/advisory/ntap-20190703-0001/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://support.f5.com/csp/article/K51011533",
                "url": "https://support.f5.com/csp/article/K51011533"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuApr2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuApr2021.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuoct2021.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.tenable.com/security/tns-2021-11",
                "url": "https://www.tenable.com/security/tns-2021-11"
            }
        ]
    }
}