Buffer overflow in Arm 5th Gen GPU Architecture Kernel Driver
CVE-2023-32804
Out-of-bounds Write vulnerability in Arm Ltd Midgard GPU Userspace Driver, Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a local non-privileged user to write a constant pattern to a limited amount of memory not allocated by the user space driver.This issue affects Midgard GPU Userspace Driver: from r0p0 through r32p0; Bifrost GPU Userspace Driver: from r0p0 through r44p0; Valhall GPU Userspace Driver: from r19p0 through r44p0; Arm 5th Gen GPU Architecture Userspace Driver: from r41p0 through r44p0.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (13.8th 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
- Arm 5th_gen_gpu_architecture_kernel_driver
- Arm Bifrost_gpu_kernel_driver
- Arm Midgard_gpu_kernel_driver
- Arm Valhall_gpu_kernel_driver
- Arm Ltd 5th Gen Gpu Architecture Userspace Driver — versions r41p0
- Arm Ltd Bifrost Gpu Userspace Driver — versions r0p0
- Arm Ltd Midgard Gpu Userspace Driver — versions r0p0
- Arm Ltd Valhall Gpu Userspace Driver — versions r19p0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- arm-security@arm.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-32804?
- CVE-2023-32804 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 2023-12-04.
- How severe is CVE-2023-32804?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-32804 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.