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K
zdiGwangun Jung (@pr0Ln) at THEORIZDI-23-1589
HistoryNov 06, 2023 - 12:00 a.m.

VMware Workstation UHCI Uninitialized Variable Information Disclosure Vulnerability

2023-11-0600:00:00
Gwangun Jung (@pr0Ln) at THEORI
www.zerodayinitiative.com
4
vmware
workstation
uhci
variable
information
disclosure
vulnerability
local
attackers
sensitive
high-privileged
code
memory
access
hypervisor
exploit

6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

6.6 Medium

AI Score

Confidence

High

1.4 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

MULTIPLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:M/C:P/I:N/A:N

0.0004 Low

EPSS

Percentile

14.8%

This vulnerability allows local attackers to disclose sensitive information on affected installations of VMware Workstation. 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 UHCI component. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the hypervisor.

6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

6.6 Medium

AI Score

Confidence

High

1.4 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

MULTIPLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:M/C:P/I:N/A:N

0.0004 Low

EPSS

Percentile

14.8%