Advisory Details

April 22nd, 2021

Oracle VirtualBox LsiLogicSCSI Time-Of-Check Time-Of-Use Information Disclosure Vulnerability

ZDI-21-462
ZDI-CAN-12855

CVE ID CVE-2021-2297
CVSS SCORE 5.3, (AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N)
AFFECTED VENDORS Oracle
AFFECTED PRODUCTS VirtualBox
VULNERABILITY DETAILS

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 implementation of the LsiLogic virtual device. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor.

ADDITIONAL DETAILS Oracle has issued an update to correct this vulnerability. More details can be found at:
https://www.oracle.com/security-alerts/cpuapr2021.html
DISCLOSURE TIMELINE
  • 2021-01-15 - Vulnerability reported to vendor
  • 2021-04-22 - Coordinated public release of advisory
CREDIT Lucas Leong (@_wmliang_) of Trend Micro Zero Day Initiative
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