SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2022-38181

Arm Mali GPU Kernel Driver Use-After-Free Vulnerability

KEVHIGH 8.8EPSS 13.6%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 April 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

The Arm Mali GPU kernel driver allows unprivileged users to access freed memory because GPU memory operations are mishandled. This affects Bifrost r0p0 through r38p1, and r39p0; Valhall r19p0 through r38p1, and r39p0; and Midgard r4p0 through r32p0.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
13.56% probability · 96th percentile
CISA KEV
Listed 30 March 2023 · due 20 April 2023
Weakness
CWE-416
Affected
arm/bifrost gpu kernel driver · arm/midgard gpu kernel driver · arm/valhall gpu kernel driver
Source
cve@mitre.org

CISA notes

Apply updates per vendor instructions. https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities; https://nvd.nist.gov/vuln/detail/CVE-2022-38181

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.