This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.4. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the prl_hypervisor module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11217.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17396
Reference (s):
- https://kb.parallels.com/en/125013
- URL: https://kb.parallels.com/en/125013
- https://www.zerodayinitiative.com/advisories/ZDI-20-1014/
- URL: https://www.zerodayinitiative.com/advisories/ZDI-20-1014/