CVE-2020-14676: Oracle VirtualBox PCnet Out-Of-Bounds Access Privilege Escalation Vulnerability
First published: Wed Jul 15 2020(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 handling of Transmit Message Descriptors in the implementation of PCnet virtual network interfaces. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor.
Credit: secalert_us@oracle.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oracle VM VirtualBox | <5.2.44 | |
| Oracle VM VirtualBox | >=6.0.0<6.0.24 | |
| Oracle VM VirtualBox | >=6.1.0<6.1.12 | |
| openSUSE Leap | =15.1 | |
| openSUSE Leap | =15.2 | |
| Oracle VirtualBox |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00068.html
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00079.html
- https://security.gentoo.org/glsa/202101-09
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.zerodayinitiative.com/advisories/ZDI-20-894/
Frequently Asked Questions
What is the vulnerability ID for this Oracle VirtualBox vulnerability?
The vulnerability ID for this Oracle VirtualBox vulnerability is CVE-2020-14676.
What is the severity of CVE-2020-14676?
The severity of CVE-2020-14676 is high, with a severity value of 7.5.
Which versions of Oracle VirtualBox are affected by CVE-2020-14676?
Versions prior to 5.2.44, prior to 6.0.24, and prior to 6.1.12 of Oracle VirtualBox are affected by CVE-2020-14676.
What is the CWE ID for this vulnerability?
The CWE ID for this vulnerability is 125.
Where can I find more information about CVE-2020-14676?
You can find more information about CVE-2020-14676 on the following references: [1](http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00068.html), [2](http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00079.html), and [3](https://security.gentoo.org/glsa/202101-09).
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