8.2
Advisory Published
Advisory Published

ZDI-23-708: 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 SoftwareAffected VersionHow to fix

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Frequently Asked Questions

  • What is ZDI-23-708?

    ZDI-23-708 is a vulnerability in the Linux Kernel vmwgfx driver that allows local attackers to escalate privileges on affected installations of Linux Kernel.

  • How severe is ZDI-23-708?

    ZDI-23-708 has a severity rating of 8.2 (high).

  • How can this vulnerability be exploited?

    In order to exploit ZDI-23-708, an attacker must first obtain the ability to execute high-privileged code on the target system.

  • Is there a fix for ZDI-23-708?

    Yes, a fix for ZDI-23-708 is available. Please refer to the provided references for more information.

  • Where can I find more information about ZDI-23-708?

    You can find more information about ZDI-23-708 by referring to the provided references.

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