Buffer Overflow in Linux Kernel ASoC Tegra210 AHUB

Executive Summary

This is a vulnerability in the Linux kernel's ASoC subsystem, specifically in the tegra210_ahub driver. The issue involves a function that reads an array value before validating if the index is within bounds. This can lead to an out-of-range read, potentially exposing kernel memory or causing system instability.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability is specific to the Linux kernel's ASoC tegra210_ahub driver and requires kernel-level inspection. Detection involves checking kernel logs for related errors or verifying the driver's source code for the vulnerable function tegra_ahub_put_value_enum(). No direct network commands exist for detection.

Useful 0 Not Useful 0

Impact Analysis

An attacker with local access could exploit this to read sensitive kernel memory, crash the system, or escalate privileges. Systems using affected Linux kernel versions with the tegra210_ahub driver may be vulnerable to denial-of-service or information disclosure.

Useful 0 Not Useful 0

Mitigation Strategies

Apply the latest Linux kernel update that includes the fix for this issue. If updating is not immediately possible, restrict access to the vulnerable driver or disable the tegra210_ahub module until patched. Monitor kernel logs for exploitation attempts.

Useful 0 Not Useful 0