Buffer overflow in Arm 5th Gen GPU Architecture Kernel Driver
CVE-2023-5643
Out-of-bounds Write 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 memory processing operations. Depending on the configuration of the Mali GPU Kernel Driver, and if the system’s memory is carefully prepared by the user, then this in turn could write to memory outside of buffer bounds.This issue affects Bifrost GPU Kernel Driver: from r41p0 through r45p0; Valhall GPU Kernel Driver: from r41p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r45p0.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (7.7th 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)
Frequently asked questions
- What is CVE-2023-5643?
- CVE-2023-5643 is a high-severity vulnerability in Arm 5th Gen GPU Architecture Kernel Driver, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2024-02-05.
- How severe is CVE-2023-5643?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-5643 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.