Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 5.2.34 and prior to 6.0.14. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox
Lewei Qu
https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=cve-2019-3021
https://security.gentoo.org/glsa/202004-02
http://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html