CVE-2020-2894: (Pwn2Own) Oracle VirtualBox E1000 IP Checksum Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows local attackers to disclose sensitive information 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 IP checksums in the virtualized e1000 network interface. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to 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 6.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N).
Affected Software
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Frequently Asked Questions
What is CVE-2020-2894?
CVE-2020-2894 is a vulnerability in the Oracle VirtualBox product that allows an attacker to read information from the system.
What is the severity of CVE-2020-2894?
CVE-2020-2894 has a severity rating of medium.
Which versions of Oracle VirtualBox are affected by CVE-2020-2894?
Oracle VirtualBox versions prior to 5.2.40, prior to 6.0.20, and prior to 6.1.6 are affected.
How can an attacker exploit CVE-2020-2894?
An attacker with high privileges and logon access to the infrastructure can easily exploit CVE-2020-2894.
Is there a fix available for CVE-2020-2894?
Yes, Oracle has released fixes for CVE-2020-2894. It is recommended to update to the latest version of Oracle VirtualBox.