{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-22898",
        "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": "7.7 through 7.76.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Information Disclosure (CWE-200)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://hackerone.com/reports/1176461",
                "url": "https://hackerone.com/reports/1176461"
            },
            {
                "refsource": "MISC",
                "name": "https://curl.se/docs/CVE-2021-22898.html",
                "url": "https://curl.se/docs/CVE-2021-22898.html"
            },
            {
                "refsource": "MISC",
                "name": "https://github.com/curl/curl/commit/39ce47f219b09c380b81f89fe54ac586c8db6bde",
                "url": "https://github.com/curl/curl/commit/39ce47f219b09c380b81f89fe54ac586c8db6bde"
            },
            {
                "refsource": "MLIST",
                "name": "[guacamole-issues] 20210618 [jira] [Created] (GUACAMOLE-1368) Latest docker image fails security scans.",
                "url": "https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c@%3Cissues.guacamole.apache.org%3E"
            },
            {
                "url": "https://www.oracle.com//security-alerts/cpujul2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com//security-alerts/cpujul2021.html"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20210721 [SECURITY ADVISORY] curl: TELNET stack contents disclosure again",
                "url": "http://www.openwall.com/lists/oss-security/2021/07/21/4"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-83fdddca0f",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/POOC3UV7V6L4CJ5KA2PTWTNUV5Y72T3Q/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-5d21b90a30",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20210813 [SECURITY] [DLA 2734-1] curl security update",
                "url": "https://lists.debian.org/debian-lts-announce/2021/08/msg00017.html"
            },
            {
                "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": "CONFIRM",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-5197",
                "url": "https://www.debian.org/security/2022/dsa-5197"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20220828 [SECURITY] [DLA 3085-1] curl security update",
                "url": "https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol."
            }
        ]
    }
}