{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-21779",
        "ASSIGNER": "talos-cna@cisco.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Webkit",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Webkit WebKitGTK 2.30.4"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-416: Use After Free"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238",
                "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20210723 WebKitGTK and WPE WebKit Security Advisory WSA-2021-0004",
                "url": "http://www.openwall.com/lists/oss-security/2021/07/23/1"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-cf7d8c7b1a",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4945",
                "url": "https://www.debian.org/security/2021/dsa-4945"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-3de956ceee",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A use-after-free vulnerability exists in the way Webkit\u2019s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability."
            }
        ]
    },
    "impact": {
        "cvss": {
            "baseScore": 6.8,
            "baseSeverity": "Medium",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L",
            "version": "3.0"
        }
    }
}