cvelist/2021/34xxx/CVE-2021-34856.json

{
    "CVE_data_meta": {
        "ASSIGNER": "zdi-disclosures@trendmicro.com",
        "ID": "CVE-2021-34856",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Desktop",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "16.1.3 (49160)"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Parallels"
                }
            ]
        }
    },
    "credit": "Ben McBride",
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.3 (49160). An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the virtio-gpu virtual device. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13581."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "url": "https://kb.parallels.com/125013",
                "refsource": "MISC",
                "name": "https://kb.parallels.com/125013"
            },
            {
                "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-938/",
                "refsource": "MISC",
                "name": "https://www.zerodayinitiative.com/advisories/ZDI-21-938/"
            }
        ]
    },
    "impact": {
        "cvss": {
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
        }
    }
}