CVE-2020-14699: Oracle VirtualBox e1000 Integer Underflow 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 implementation of the e1000 virtual network adapter. 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 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
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.zerodayinitiative.com/advisories/ZDI-20-902/
- 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
Frequently Asked Questions
What is CVE-2020-14699?
CVE-2020-14699 is a vulnerability in Oracle VirtualBox that allows a high privileged attacker to escalate privileges.
Which versions of Oracle VirtualBox are affected by CVE-2020-14699?
Versions prior to 5.2.44, prior to 6.0.24, and prior to 6.1.12 of Oracle VirtualBox are affected.
How can CVE-2020-14699 be exploited?
CVE-2020-14699 is a difficult to exploit vulnerability that requires the attacker to have logon access to the infrastructure where Oracle VirtualBox is installed.
What is the severity of CVE-2020-14699?
CVE-2020-14699 has a severity of 7.5 (high).
Where can I find more information about CVE-2020-14699?
More information about CVE-2020-14699 can be found in the references provided: [link1](http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00068.html), [link2](http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00079.html), [link3](https://security.gentoo.org/glsa/202101-09).
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