CVE-2021-2279: Oracle VirtualBox VRDP Heap-based Buffer Overflow Remote Code Execution Vulnerability
First published: Thu Apr 22 2021(Updated: )
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Oracle VirtualBox. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of drdynvc packets. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the RDP service.
Credit: secalert_us@oracle.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oracle VirtualBox | ||
| Oracle VM VirtualBox | <6.1.20 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-2279.
What is the title of the vulnerability?
The title of the vulnerability is Oracle VirtualBox VRDP Heap-based Buffer Overflow Remote Code Execution Vulnerability.
What is the affected software?
The affected software is Oracle VirtualBox version prior to 6.1.20.
What is the severity of CVE-2021-2279?
The severity of CVE-2021-2279 is high with a CVSS score of 8.1.
How can an attacker exploit this vulnerability?
An unauthenticated attacker with network access via RDP can exploit this vulnerability to compromise Oracle VM VirtualBox.
How do I fix CVE-2021-2279?
To fix CVE-2021-2279, upgrade Oracle VM VirtualBox to version 6.1.20 or later.
- collector/zdi-advisory
- alias/ZDI-21-453
- alias/ZDI-CAN-12407
- alias/CVE-2021-2279
- collector/nvd-index
- agent/title
- agent/author
- agent/severity
- agent/references
- vendor/oracle
- canonical/oracle virtualbox
- canonical/oracle vm virtualbox