CVE-2023-26083 : Security Advisory and Response

This CVE record was published on April 6, 2023. It involves a memory leak vulnerability in the Mali GPU Kernel Driver, affecting various versions. The vulnerability allows a non-privileged user to perform valid GPU processing operations that expose sensitive kernel metadata.

Understanding CVE-2023-26083

This section delves into the details of CVE-2023-26083, shedding light on what the vulnerability entails and its potential impact.

What is CVE-2023-26083?

CVE-2023-26083 is a memory leak vulnerability found in the Mali GPU Kernel Driver. Specifically, it impacts the Midgard GPU Kernel Driver versions from r6p0 to r32p0, the Bifrost GPU Kernel Driver versions from r0p0 to r42p0, the Valhall GPU Kernel Driver versions from r19p0 to r42p0, and the Avalon GPU Kernel Driver versions from r41p0 to r42p0. This vulnerability allows unauthorized users to conduct GPU processing operations that could potentially expose critical kernel metadata.

The Impact of CVE-2023-26083

The impact of CVE-2023-26083 can be significant as it exposes sensitive kernel metadata to non-privileged users. This could lead to unauthorized access, manipulation of data, and potentially compromise the security of the affected systems.

Technical Details of CVE-2023-26083

Explore the technical aspects of CVE-2023-26083, including the vulnerability description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in the Mali GPU Kernel Driver results in a memory leak issue that allows non-privileged users to exploit valid GPU processing operations, leading to the exposure of sensitive kernel metadata.

Affected Systems and Versions

The Mali GPU Kernel Driver versions affected by this vulnerability include Midgard GPU Kernel Driver (r6p0 - r32p0), Bifrost GPU Kernel Driver (r0p0 - r42p0), Valhall GPU Kernel Driver (r19p0 - r42p0), and Avalon GPU Kernel Driver (r41p0 - r42p0).

Exploitation Mechanism

The exploitation of CVE-2023-26083 involves non-privileged users leveraging the memory leak vulnerability in the Mali GPU Kernel Driver to conduct GPU processing operations that expose kernel metadata.

Mitigation and Prevention

In response to CVE-2023-26083, it is crucial to implement immediate steps for mitigation and adopt long-term security practices to enhance system resilience against such vulnerabilities.

Immediate Steps to Take

Update the Mali GPU Kernel Driver to the latest patched version provided by the vendor.
Monitor system activity for any suspicious behavior indicating exploitation of the vulnerability.

Long-Term Security Practices

Regularly update and patch all software components, including GPU drivers and kernel modules.
Conduct security assessments and audits to identify and address potential vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and patches released by the Mali GPU driver vendor. Apply patches promptly to address known vulnerabilities and enhance the security posture of the system.