CVE-2021-28663

Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

Act

*SSVC

Descriptions

The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading to a use-after-free. This affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r4p0 through r30p0.

El controlador del kernel de Arm Mali GPU, permite una escalada de privilegios o una divulgación de información porque las operaciones de la memoria de la GPU son manejadas inapropiadamente, conllevando a un uso de la memoria previamente liberada. Esto afecta a Bifrost versiones r0p0 hasta r28p0, anteriores a r29p0, Valhall versiones r19p0 hasta r28p0 anteriores a r29p0 y Midgard versiones r4p0 hasta r30p0

Arm Mali Graphics Processing Unit (GPU) kernel driver contains a use-after-free vulnerability that may allow a non-privileged user to make improper operations on GPU memory to gain root privilege, and/or disclose information.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Act

Exploitation

Active

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-03-18 CVE Reserved
2021-05-10 CVE Published
2021-11-03 Exploited in Wild
2021-11-17 KEV Due Date
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-09-12 EPSS Updated

CWE

CWE-416: Use After Free

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
https://github.com/lntrx/CVE-2021-28663	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://developer.arm.com/support/arm-security-updates	2023-12-13
https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver	2023-12-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Arm Search vendor "Arm"		Bifrost Gpu Kernel Driver Search vendor "Arm" for product "Bifrost Gpu Kernel Driver"				>= r0p0 <= r28p0 Search vendor "Arm" for product "Bifrost Gpu Kernel Driver" and version " >= r0p0 <= r28p0"		-		Affected
Arm Search vendor "Arm"		Midgard Gpu Kernel Driver Search vendor "Arm" for product "Midgard Gpu Kernel Driver"				>= r4p0 <= r30p0 Search vendor "Arm" for product "Midgard Gpu Kernel Driver" and version " >= r4p0 <= r30p0"		-		Affected
Arm Search vendor "Arm"		Valhall Gpu Kernel Driver Search vendor "Arm" for product "Valhall Gpu Kernel Driver"				>= r19p0 <= r28p0 Search vendor "Arm" for product "Valhall Gpu Kernel Driver" and version " >= r19p0 <= r28p0"		-		Affected