CVE-2021-29256

KEV
Published: Mag 24, 2021 Last Modified: Nov 03, 2025 EU-VD ID: EUVD-2021-15895 Aliases: GSD-2021-29256
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 9,0
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: single
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

. The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0064
Percentile
0,7th
Updated

EPSS Score Trend (Last 90 Days)

416

Use After Free

Stable
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Confidentiality
Potential Impacts:
Modify Memory Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Likelihood of Exploit: High
View CWE Details
Application

Bifrost Gpu Kernel Driver by Arm

Product Information
Vendor Arm
Product Bifrost Gpu Kernel Driver
Version Range Affected
From r16p0 (inclusive)
To r30p0 (exclusive)
cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Valhall Gpu Kernel Driver by Arm

Product Information
Vendor Arm
Product Valhall Gpu Kernel Driver
Version Range Affected
From r19p0 (inclusive)
To r30p0 (exclusive)
cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Midgard Gpu Kernel Driver by Arm

Product Information
Vendor Arm
Product Midgard Gpu Kernel Driver
Version Range Affected
From r28p0 (inclusive)
To r31p0 (exclusive)
cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021…
https://developer.arm.com/support/arm-security-updates/mali…
https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver
https://developer.arm.com/support/arm-security-updates/mali…
https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver