What is the vulnerability ID of this Oracle VirtualBox vulnerability?

The vulnerability ID of this Oracle VirtualBox vulnerability is CVE-2021-2145.

What is the title of this Oracle VirtualBox vulnerability?

The title of this Oracle VirtualBox vulnerability is Oracle VirtualBox NAT Integer Underflow Privilege Escalation Vulnerability.

What is the affected software of this vulnerability?

The affected software of this vulnerability is Oracle VirtualBox version prior to 6.1.20.

What is the severity of CVE-2021-2145?

The severity of CVE-2021-2145 is high with a severity value of 7.5.

How can I fix this vulnerability?

To fix this vulnerability, it is recommended to update Oracle VirtualBox to version 6.1.20 or later.

Vulnerability/
CVE-2021-2145

high

7.5

22/4/2021

3/8/2024

26/9/2024

CVE-2021-2145: Oracle VirtualBox NAT Integer Underflow Privilege Escalation Vulnerability

First published: Thu Apr 22 2021(Updated: )

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 implementation of NAT. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor.

Credit: secalert_us@oracle.com

Affected Software	Affected Version	How to fix
Oracle VirtualBox
Oracle VM VirtualBox	<6.1.20

Remedy

https://www.oracle.com/security-alerts/cpuapr2021.html

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Reference Links

Frequently Asked Questions

What is the vulnerability ID of this Oracle VirtualBox vulnerability?
The vulnerability ID of this Oracle VirtualBox vulnerability is CVE-2021-2145.
What is the title of this Oracle VirtualBox vulnerability?
The title of this Oracle VirtualBox vulnerability is Oracle VirtualBox NAT Integer Underflow Privilege Escalation Vulnerability.
What is the affected software of this vulnerability?
The affected software of this vulnerability is Oracle VirtualBox version prior to 6.1.20.
What is the severity of CVE-2021-2145?
The severity of CVE-2021-2145 is high with a severity value of 7.5.
How can I fix this vulnerability?
To fix this vulnerability, it is recommended to update Oracle VirtualBox to version 6.1.20 or later.

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