CVE-2021-2250: (Pwn2Own) Oracle VirtualBox SLiRP Networking Heap-based Overflow 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 parsing of ICMP messages. The issue results from the lack of proper validation of guest-supplied data, which can result in a write past the end of an allocated buffer. 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 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-2250?
CVE-2021-2250 is a vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization that allows a high privileged attacker to escalate their privileges.
What is the severity of CVE-2021-2250?
CVE-2021-2250 has a severity score of 8.2, which is considered high.
Which version of Oracle VirtualBox is affected by CVE-2021-2250?
Versions of Oracle VirtualBox prior to 6.1.20 are affected by CVE-2021-2250.
How can CVE-2021-2250 be exploited?
CVE-2021-2250 can be exploited by a high privileged attacker with logon credentials to the infrastructure where Oracle VM VirtualBox executes.
How can I fix CVE-2021-2250?
To fix CVE-2021-2250, users should update to version 6.1.20 or later of Oracle VirtualBox.
- collector/zdi-advisory
- alias/ZDI-21-484
- alias/ZDI-CAN-13568
- alias/CVE-2021-2250
- collector/nvd-index
- agent/event
- vendor/oracle
- canonical/oracle virtualbox
- canonical/oracle vm virtualbox