CVE-2021-28663

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

10/05/2021

Last modified:

14/03/2025

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:S/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.00 HIGH
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

9.00

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:arm:bifrost_gpu_kernel_driver::::::::	r0p0 (including)	r29p0 (excluding)
cpe:2.3:a:arm:midgard_gpu_kernel_driver::::::::	r4p0 (including)	r31p0 (excluding)
cpe:2.3:a:arm:valhall_gpu_kernel_driver::::::::	r19p0 (including)	r29p0 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-28663

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools