CVE-2020-2894: (Pwn2Own) Oracle VirtualBox E1000 IP Checksum Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Wed Apr 15 2020(Updated: )
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.
Credit: secalert_us@oracle.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oracle VirtualBox | ||
| Oracle VM VirtualBox | <5.2.40 | |
| Oracle VM VirtualBox | >=6.0.0<6.0.20 | |
| Oracle VM VirtualBox | >=6.1.0<6.1.6 | |
| openSUSE Leap | =15.1 |
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Reference Links
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.
- collector/zdi-advisory
- alias/ZDI-20-581
- alias/ZDI-CAN-10782
- alias/CVE-2020-2894
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- vendor/oracle
- canonical/oracle virtualbox
- canonical/oracle vm virtualbox
- version/oracle vm virtualbox/6.0.0
- version/oracle vm virtualbox/6.1.0
- vendor/opensuse
- canonical/opensuse leap
- version/opensuse leap/15.1