CVE-2020-2758: Oracle VirtualBox VBoxVGA VBoxVHWASurfaceBase Use-After-Free Privilege Escalation Vulnerability
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 VBoxVGA graphics controller component. When handling the VBoxVHWASurfaceBase object, the process does not properly validate the existence of the object prior to performing operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor.
Other sources
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 5.2.40, prior to 6.0.20 and prior to 6.1.6. Easily exploitable vulnerability allows high 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 takeover of Oracle VM VirtualBox. CVSS 3.0 Base Score 8.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H).
Affected Software
Event History
Frequently Asked Questions
What is CVE-2020-2758?
CVE-2020-2758 is a vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization that allows a high privileged attacker to escalate their privileges.
Which versions of Oracle VirtualBox are affected by CVE-2020-2758?
The affected versions are prior to 5.2.40, prior to 6.0.20, and prior to 6.1.6.
How severe is CVE-2020-2758?
CVE-2020-2758 has a severity score of 8.2, which is considered high.
How can CVE-2020-2758 be exploited?
CVE-2020-2758 can be easily exploited by a high privileged attacker with logon access to the infrastructure where Oracle VirtualBox is deployed.
Are there any references for CVE-2020-2758?
Yes, here are some references: http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00001.html, https://security.gentoo.org/glsa/202101-09, and https://www.oracle.com/security-alerts/cpuapr2020.html