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K
zdiJason Matthyser of MWR LabsZDI-19-661
HistoryJul 22, 2019 - 12:00 a.m.

Oracle VirtualBox cr_unpackData Out-Of-Bounds Read Information Disclosure Vulnerability

2019-07-2200:00:00
Jason Matthyser of MWR Labs
www.zerodayinitiative.com
11

0.0004 Low

EPSS

Percentile

9.9%

This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the cr_unpackData method. 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 object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the hypervisor.