Advisory Details

April 30th, 2020

(Pwn2Own) Oracle VirtualBox OHCI Uninitialized Variable Privilege Escalation Vulnerability

CVE ID	CVE-2020-2575
CVSS SCORE	7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Oracle
AFFECTED PRODUCTS	VirtualBox
VULNERABILITY DETAILS	This vulnerability allows local attackers to escalate privileges on affected installations of Oracle VirtualBox. 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 processing of data sent to OHCI endpoints. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the hypervisor.
ADDITIONAL DETAILS	Oracle has issued an update to correct this vulnerability. More details can be found at: https://www.oracle.com/security-alerts/cpuapr2020.html
DISCLOSURE TIMELINE	2020-04-30 - Vulnerability reported to vendor 2020-04-30 - Coordinated public release of advisory
CREDIT	anhdaden of STAR Labs

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