What is the vulnerability ID for this Linux Kernel vulnerability?

The vulnerability ID for this Linux Kernel vulnerability is ZDI-CAN-20292.

What is the severity of the ZDI-CAN-20292 vulnerability?

The severity of the ZDI-CAN-20292 vulnerability is high.

How does the ZDI-CAN-20292 vulnerability allow local attackers to escalate privileges?

The ZDI-CAN-20292 vulnerability allows local attackers to escalate privileges by exploiting a double free vulnerability in the vmwgfx driver.

How can the ZDI-CAN-20292 vulnerability be fixed?

To fix the ZDI-CAN-20292 vulnerability, users should apply the patch provided by the Linux Kernel development team.

Where can I find more information about the ZDI-CAN-20292 vulnerability?

You can find more information about the ZDI-CAN-20292 vulnerability on the Zero Day Initiative website and the Linux Kernel Git repository.

Vulnerability/
ZDI-CAN-20292

high

8.2

17/5/2023

16/1/2024

ZDI-CAN-20292: Linux Kernel vmwgfx Driver Double Free Local Privilege Escalation Vulnerability

First published: Wed May 17 2023(Updated: )

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of vmw_buffer_object objects. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

Affected Software	Affected Version	How to fix

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Frequently Asked Questions

What is the vulnerability ID for this Linux Kernel vulnerability?
The vulnerability ID for this Linux Kernel vulnerability is ZDI-CAN-20292.
What is the severity of the ZDI-CAN-20292 vulnerability?
The severity of the ZDI-CAN-20292 vulnerability is high.
How does the ZDI-CAN-20292 vulnerability allow local attackers to escalate privileges?
The ZDI-CAN-20292 vulnerability allows local attackers to escalate privileges by exploiting a double free vulnerability in the vmwgfx driver.
How can the ZDI-CAN-20292 vulnerability be fixed?
To fix the ZDI-CAN-20292 vulnerability, users should apply the patch provided by the Linux Kernel development team.
Where can I find more information about the ZDI-CAN-20292 vulnerability?
You can find more information about the ZDI-CAN-20292 vulnerability on the Zero Day Initiative website and the Linux Kernel Git repository.

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collector/zdi-advisory
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alias/ZDI-23-708
alias/ZDI-CAN-20292
alias/CVE-2023-33952
agent/software-canonical-lookup
collector/zdi-published
vendor/linux
canonical/linux kernel

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