CVE-2023-21166

In RGXBackingZSBuffer of rgxta3d.c, there is a possible arbitrary code execution due to a use after free

Critical · published December 4, 2023

CVSS v3.1
9.8
EPSS
0%
Percentile
34.6
In the wild
Unconfirmed
What it is

🚨 A sneaky use-after-free bug in rgxta3d.c can lead to arbitrary code execution with zero user interaction! 🔥 Think of it like a contractor finishing a project and leaving behind a live electrical wire. If someone trips over it, they could easily get shocked without even touching the device. In this case, the kernel is at risk without needing any permissions! An attacker could exploit this flaw to escalate privileges in the kernel, gaining complete control over the system. This means they could run their own code, manipulate data, or even sabotage operations without needing any special access. It’s absolutely devastating for system security and puts sensitive information in jeopardy!

Put simply

Think of it like a contractor finishing a project and leaving behind a live electrical wire. If someone trips over it, they could easily get shocked without even touching the device. In this case, the kernel is at risk without needing any permissions! This vulnerability allows for arbitrary code execution through a use-after-free condition in the RGXBackingZSBuffer function of rgxta3d.c. Essentially, when an object is freed and then accessed again, it can allow attackers to execute their own code in the kernel space without permission.

What to do

An attacker could exploit this flaw to escalate privileges in the kernel, gaining complete control over the system. This means they could run their own code, manipulate data, or even sabotage operations without needing any special access. It’s absolutely devastating for system security and puts sensitive information in jeopardy! Immediately patch your systems by updating to the latest version that addresses CVE-2023-21166. Ensure that all systems running the affected code are monitored and audited for any unusual activity. Don't forget to review your current security practices to mitigate such risks moving forward. You’ve got this! Follow these steps, and you’ll be back to hero status in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00414 · 34.6th percentile
Published
2023-12-04T22:40Z
EPSS history
Timeline
  • 04 DEC 22:40Z
    In RGXBackingZSBuffer of rgxta3d.c, there is a possible arbitrary code execution due to a use after free
    cvelistv5