CVE-2020-2748
VirtualBox vulnerability analysis and mitigation

Overview

CVE-2020-2748 is a vulnerability discovered in Oracle VM VirtualBox, affecting versions prior to 5.2.40, prior to 6.0.20, and prior to 6.1.6. The vulnerability was disclosed and patched in Oracle's April 2020 Critical Patch Update (Oracle CPU).

Technical details

The vulnerability exists within the vmsvgaR3FifoUpdateCursor function and results from the lack of proper validation of user-supplied data, which can lead to a read past the end of an allocated buffer. The vulnerability has been assigned a CVSS v3.0 Base Score of 3.2 (AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N) (ZDI Advisory).

Impact

A successful exploitation of this vulnerability can result in unauthorized disclosure of sensitive information. The vulnerability only affects the confidentiality of the system, with no impact on integrity or availability (ZDI Advisory).

Mitigation and workarounds

Oracle has released security patches to address this vulnerability. Users should upgrade to VirtualBox version 6.0.20 or later, 6.1.6 or later, or 5.2.40 or later. The fix was included in Oracle's April 2020 Critical Patch Update (Oracle CPU).

Additional resources


SourceThis report was generated using AI

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