{"id":"CVE-2021-34856","state":"PUBLISHED","title":"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","description":"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. 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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."}],"affected":[{"vendor":"Parallels","product":"Desktop","versions":[{"version":"16.1.3 (49160)","status":"affected"}]}],"references":[{"url":"https://kb.parallels.com/125013","tags":["x_refsource_MISC"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-938/","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_0":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-119","description":"CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"zdi","dateUpdated":"2021-10-25T17:10:40.000Z","orgId":"99f1926a-a320-47d8-bbb5-42feb611262e"},"credits":[{"lang":"en","value":"Ben McBride"}],"x_legacyV4Record":{"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."}]},"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"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}]},"references":{"reference_data":[{"name":"https://kb.parallels.com/125013","refsource":"MISC","url":"https://kb.parallels.com/125013"},{"name":"https://www.zerodayinitiative.com/advisories/ZDI-21-938/","refsource":"MISC","url":"https://www.zerodayinitiative.com/advisories/ZDI-21-938/"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://kb.parallels.com/125013","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-938/","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T00:26:54.203Z"}}]}}}