External risk intelligence

Arm Mali GPU Driver Unauthorized Memory Write

CVE advisoryKnown Exploit

CVE-2022-22706

A flaw in the Arm Mali GPU Kernel Driver allows unauthorized memory writes, potentially impacting system stability and data. This affects specific versions of the Midgard, Bifrost, and Valhall drivers, posing a risk of data manipulation or system compromise for organizations. Organizations should identify affected asse

1Halo Surface Signal

Memory Corruption

Arm Bifrost Gpu Kernel Driver

r0p0 to before r36p0r26p0 to before r32p0r19p0 to before r36p0

External exposure likelihood

Halo Surface Signal score for CVE-2022-22706

This vulnerability resides within the GPU kernel driver, which is a local, low-level system component. It requires local access to the device to interact with the driver and cannot be reached via the public internet.

Horizon Alert

Summary of the vulnerability and why it matters

The Arm Mali GPU Kernel Driver contains a flaw that allows a non-privileged user to modify memory that should be read-only. This can affect system stability and data integrity. The vulnerability exists within specific versions of the Midgard, Bifrost, and Valhall architectures of the driver.

  • Vulnerable Arm Mali GPU Kernel Driver
  • Non-privileged user gains write access
  • Potential for data corruption and system instability

Attack Path

How an attacker could exploit the issue

This vulnerability allows a non-privileged user to gain write access to memory pages that are normally read-only. This could enable an attacker to modify critical system information or execute arbitrary code. The attack requires local access to the affected device.

  • Local device access is required.
  • Attacker triggers a driver vulnerability.
  • Attacker gains write access to memory.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow a user with limited access on a device to gain unauthorized write access to memory. This could potentially lead to system instability or data manipulation. The impact on an organization could include compromised devices, data breaches, and disruption of services.

  • Attacker skill: Basic access required.
  • Access: Local device access.
  • Urgency: Treat as high urgency.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in the Arm Mali GPU Kernel Driver enables a user with no special privileges to modify memory that should be read-only. This could lead to system instability or unauthorized data access. Affected organizations should prioritize identifying and mitigating the risk associated with this driver.

  • Find affected assets.
  • Reduce exposure or isolate risk.
  • Fix, verify, and monitor.

Frequently asked questions

What is the Arm Mali GPU Kernel Driver and its function?

The Arm Mali GPU Kernel Driver manages the GPU in devices with Arm Mali graphics hardware. It enables the OS and apps to use the GPU for rendering, improving visual performance in games and applications.

What type of vulnerability is CVE-2022-22706 in the Arm Mali GPU Kernel Driver?

CVE-2022-22706 is classified as CWE-119, indicating improper handling of buffer boundaries. This weakness allows a user with basic access to write to read-only memory locations.

What is the trigger path and scope for CVE-2022-22706?

The vulnerability is triggered when a non-privileged user with local device access interacts with the driver, leading to unauthorized write access to read-only memory pages. The scope is limited to the local system.

How relevant is CVE-2022-22706 to organizational security?

This vulnerability presents a high urgency for organizations as it allows a local, non-privileged user to modify read-only memory, potentially leading to data corruption, system instability, or unauthorized code execution.

What steps should be taken to address the Arm Mali GPU Kernel Driver vulnerability?

Organizations should identify affected assets, reduce exposure by isolating risks, and apply vendor-provided fixes to mitigate this vulnerability. Verification and ongoing monitoring are also crucial steps.

References