CVE-2020-11167 : Vulnerability Insights and Analysis

A memory corruption vulnerability in Qualcomm Snapdragon products could allow an attacker to trigger buffer overflow through Bluetooth.

Understanding CVE-2020-11167

This CVE involves memory corruption in the L2CAP packet length calculation, potentially leading to a buffer overflow in Bluetooth Host.

What is CVE-2020-11167?

The vulnerability arises when the reassembly logic miscalculates the L2CAP packet length due to excessive data from a remote source.

The Impact of CVE-2020-11167

Exploitation of this vulnerability could enable an attacker to execute arbitrary code or crash the system, posing a significant security risk to affected devices.

Technical Details of CVE-2020-11167

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The issue stems from an integer overflow that can lead to a buffer overflow in the Bluetooth Host component of Qualcomm Snapdragon products.

Affected Systems and Versions

Vendor: Qualcomm, Inc.
Products: Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Versions: A wide range of versions across various Qualcomm Snapdragon products are affected.

Exploitation Mechanism

The vulnerability can be exploited by sending specially crafted data to the affected device, triggering the buffer overflow condition.

Mitigation and Prevention

Protecting systems from CVE-2020-11167 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply patches and updates provided by Qualcomm to address the vulnerability promptly.
Monitor for any unusual Bluetooth activity that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update firmware and software to ensure all security patches are applied.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Qualcomm has released security bulletins, including patches for the affected products. Ensure timely installation of these updates to mitigate the risk of exploitation.