{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-23017",
        "ASSIGNER": "f5sirt@f5.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Nginx Web Server, Nginx Plus",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Nginx Web Server versions 0.6.18 thru 1.20.0 before 1.20.1, Nginx plus versions R13 thru R23 before R23 P1. Nginx plus version R24 before R24 P1"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-193"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://support.f5.com/csp/article/K12331123,",
                "url": "https://support.f5.com/csp/article/K12331123,"
            },
            {
                "refsource": "MISC",
                "name": "http://mailman.nginx.org/pipermail/nginx-announce/2021/000300.html",
                "url": "http://mailman.nginx.org/pipermail/nginx-announce/2021/000300.html"
            },
            {
                "refsource": "MLIST",
                "name": "[apisix-notifications] 20210607 [GitHub] [apisix-website] Serendipity96 opened a new pull request #362: feat: add new blog",
                "url": "https://lists.apache.org/thread.html/r6fc5c57b38e93e36213e9a18c8a4e5dbd5ced1c7e57f08a1735975ba@%3Cnotifications.apisix.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[apisix-notifications] 20210608 [GitHub] [apisix-website] liuxiran commented on a change in pull request #362: docs: added \"Apache APISIX not affected by NGINX CVE-2021-23017\"",
                "url": "https://lists.apache.org/thread.html/r37e6b2165f7c910d8e15fd54f4697857619ad2625f56583802004009@%3Cnotifications.apisix.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[apisix-notifications] 20210608 [GitHub] [apisix-website] netlify[bot] edited a comment on pull request #362: docs: added \"Apache APISIX not affected by NGINX CVE-2021-23017\"",
                "url": "https://lists.apache.org/thread.html/rf318aeeb4d7a3a312734780b47de83cefb7e6995da0b2cae5c28675c@%3Cnotifications.apisix.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[apisix-notifications] 20210608 [GitHub] [apisix-website] liuxiran merged pull request #362: docs: added \"Apache APISIX not affected by NGINX CVE-2021-23017\"",
                "url": "https://lists.apache.org/thread.html/r4d4966221ca399ce948ef34884652265729d7d9ef8179c78d7f17e7f@%3Cnotifications.apisix.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[apisix-notifications] 20210608 [apisix-website] branch master updated: docs: added \"Apache APISIX not affected by NGINX CVE-2021-23017\" (#362)",
                "url": "https://lists.apache.org/thread.html/rf232eecd47fdc44520192810560303073cefd684b321f85e311bad31@%3Cnotifications.apisix.apache.org%3E"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-b37cffac0d",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNKOP2JR5L7KCIZTJRZDCUPJTUONMC5I/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-393d698493",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7SFVYHC7OXTEO4SMBWXDVK6E5IMEYMEE/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuoct2021.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20210708-0006/",
                "url": "https://security.netapp.com/advisory/ntap-20210708-0006/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuapr2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuapr2022.html"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/167720/Nginx-1.20.0-Denial-Of-Service.html",
                "url": "http://packetstormsecurity.com/files/167720/Nginx-1.20.0-Denial-Of-Service.html"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact."
            }
        ]
    }
}