|CVSS SCORE||7.5, (AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)|
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 PGMPhysRead function. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor.
This vulnerability is being disclosed publicly without a patch in accordance with the ZDI Pwn2Own 90-day timeline.
05/18/22 – ZDI reported the vulnerability to the vendor.
|CREDIT||Billy Jheng Bing-Jhong (@st424204), Muhammad Alifa Ramdhan (@n0psledbyte), Nguyen Hoang Thạch (@hi_im_d4rkn3ss) of STAR Labs