ARM Valhall GPU Kernel Driver up to r44p1/up to r45p0/up to r49p0/up to r49p1 integer overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in ARM Valhall GPU Kernel Driver and 5th Gen GPU Architecture Kernel Driver. Impacted is an unknown function. Such manipulation leads to integer overflow. This vulnerability is referenced as CVE-2023-4295. The attack can only be performed from a local environment. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in ARM Valhall GPU Kernel Driver and 5th Gen GPU Architecture Kernel Driver (Hardware Driver Software). It has been rated as critical. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.

The weakness was published 11/07/2023 by Jann Horn. The advisory is shared for download at developer.arm.com. This vulnerability is handled as CVE-2023-4295 since 08/10/2023. There are neither technical details nor an exploit publicly available.

Upgrading to version r42p0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-54166). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 9.3
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Valhall GPU Kernel Driver/5th Gen GPU Architecture Kernel Driver r42p0

Timelineinfo

08/10/2023 🔍
11/07/2023 +89 days 🔍
11/07/2023 +0 days 🔍
12/16/2025 +770 days 🔍

Sourcesinfo

Advisory: developer.arm.com
Researcher: Jann Horn
Status: Confirmed

CVE: CVE-2023-4295 (🔍)
GCVE (CVE): GCVE-0-2023-4295
GCVE (VulDB): GCVE-100-244700
EUVD: 🔍

Entryinfo

Created: 11/07/2023 18:00
Updated: 12/16/2025 19:50
Changes: 11/07/2023 18:00 (48), 12/03/2023 14:18 (11), 03/24/2025 17:53 (17), 12/16/2025 19:50 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!