{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-22925",
        "ASSIGNER": "support@hackerone.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "https://github.com/curl/curl",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "curl 7.7 to and including 7.77.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Information Disclosure (CWE-200)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://hackerone.com/reports/1223882",
                "url": "https://hackerone.com/reports/1223882"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-5d21b90a30",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/"
            },
            {
                "refsource": "FULLDISC",
                "name": "20210921 APPLE-SA-2021-09-20-8 Additional information for APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina",
                "url": "http://seclists.org/fulldisclosure/2021/Sep/40"
            },
            {
                "refsource": "FULLDISC",
                "name": "20210921 APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6",
                "url": "http://seclists.org/fulldisclosure/2021/Sep/39"
            },
            {
                "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-20210902-0003/",
                "url": "https://security.netapp.com/advisory/ntap-20210902-0003/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://support.apple.com/kb/HT212805",
                "url": "https://support.apple.com/kb/HT212805"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://support.apple.com/kb/HT212804",
                "url": "https://support.apple.com/kb/HT212804"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf",
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202212-01",
                "url": "https://security.gentoo.org/glsa/202212-01"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application."
            }
        ]
    }
}