{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-6683",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemu_clipboard_request() function can be reached before vnc_server_cut_text_caps() was called and had the chance to initialize the clipboard peer, leading to a NULL pointer dereference. This could allow a malicious authenticated VNC client to crash QEMU and trigger a denial of service."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "NULL Pointer Dereference",
                        "cweId": "CWE-476"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Red Hat",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Red Hat Enterprise Linux 8",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "8100020240314161907.e155f54d",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "8100020240314161907.e155f54d",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 9",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "17:8.2.0-11.el9_4",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 6",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 7",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://access.redhat.com/errata/RHSA-2024:2135",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2024:2135"
            },
            {
                "url": "https://access.redhat.com/errata/RHSA-2024:2962",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2024:2962"
            },
            {
                "url": "https://access.redhat.com/security/cve/CVE-2023-6683",
                "refsource": "MISC",
                "name": "https://access.redhat.com/security/cve/CVE-2023-6683"
            },
            {
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254825",
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2254825"
            }
        ]
    },
    "work_around": [
        {
            "lang": "en",
            "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
        }
    ],
    "credits": [
        {
            "lang": "en",
            "value": "Red Hat would like to thank Fiona Ebner (Proxmox) and Markus Frank (Proxmox) for reporting this issue."
        }
    ],
    "impact": {
        "cvss": [
            {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
            }
        ]
    }
}