CVE-2022-33290 : What You Need to Know

A vulnerability in Qualcomm's Snapdragon chips could allow an attacker to cause a Denial of Service (DOS) attack through a null pointer dereference in Bluetooth HOST.

Understanding CVE-2022-33290

This CVE-2022-33290 vulnerability affects various Snapdragon platforms, potentially leading to a high impact on affected systems.

What is CVE-2022-33290?

The CVE-2022-33290 vulnerability is a transient DOS issue in Bluetooth HOST that occurs when a mismatched argument is passed, triggering a null pointer dereference.

The Impact of CVE-2022-33290

The vulnerability could be exploited by an attacker to disrupt Bluetooth HOST functionality, leading to a denial of service condition with a high availability impact.

Technical Details of CVE-2022-33290

This section provides more detailed technical information about the CVE-2022-33290 vulnerability.

Vulnerability Description

The vulnerability arises from a null pointer dereference in Bluetooth HOST due to the mishandling of mismatched arguments, allowing attackers to trigger a DOS condition.

Affected Systems and Versions

Various Snapdragon platforms such as APQ8017, MDM9250, QCA6174A, and more are affected by this vulnerability, impacting a wide range of Qualcomm chips.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted Bluetooth packets with mismatched arguments, leading to a null pointer dereference and subsequent DOS.

Mitigation and Prevention

To address and prevent potential exploitation of CVE-2022-33290, immediate and long-term security measures are crucial.

Immediate Steps to Take

Disable Bluetooth functionality on affected devices if not required.
Apply vendor-supplied patches and updates promptly.

Long-Term Security Practices

Regularly update device firmware to the latest versions.
Implement network segmentation and access controls to reduce attack surface.

Patching and Updates

Refer to the official Qualcomm advisory for specific patch information and installation guidance.