Zhangyanyu

Name of the Vulnerable Software and Affected Versions: Oracle VM VirtualBox versions prior to 6.1.18 Description: The issue is related to insufficient input validation in the Core component of Oracle VM VirtualBox, allowing a highly privileged attacker with logon access to the infrastructure where Oracle VM VirtualBox executes to compromise it. Successful attacks can result in unauthorized creation, deletion, or modification access to critical data or all Oracle VM VirtualBox accessible data. Although the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Recommendations: For versions prior to 6.1.18, update to version 6.1.18 or later to resolve the issue. As a temporary workaround, consider restricting access to the Core component of Oracle VM VirtualBox to minimize the risk of exploitation.

The issue is related to a NULL pointer dereference in QEMU's MegaRAID SAS 8708EM2 Host Bus Adapter emulation support. This can cause a denial of service and crash the QEMU process. The problem arises from megasas command processing and can be exploited by local guest OS privileged users to disrupt service.