Use After Free in Arm 5th Gen GPU Architecture Kernel Driver
CVE-2023-5427
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to make improper GPU processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r44p0 through r45p0; Valhall GPU Kernel Driver: from r44p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r45p0.
Vulnerability class: Use-After-Free
EPSS: 0.003 (26.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- arm-security@arm.com (Vendor Advisory)
- arm-security@arm.com (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-5427?
- CVE-2023-5427 is a high-severity vulnerability in Arm 5th Gen GPU Architecture Kernel Driver, classified under Use After Free. CVSS score: 7.8/10. Published 2023-12-01.
- How severe is CVE-2023-5427?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-5427 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.