CVE-2022-25739 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2022-25739, a vulnerability impacting Qualcomm's Snapdragon products.

Understanding CVE-2022-25739

CVE-2022-25739, also known as 'Null Point Dereference in MODEM,' is a denial of service vulnerability that affects a range of Qualcomm Snapdragon products.

What is CVE-2022-25739?

The vulnerability leads to a denial of service in the modem due to the absence of a null check while processing IPv6 packets received during ECM calls.

The Impact of CVE-2022-25739

With a CVSS base score of 7.5 (HIGH), the vulnerability has a significant impact on availability, potentially disrupting modem operations.

Technical Details of CVE-2022-25739

Here are the technical details associated with CVE-2022-25739:

Vulnerability Description

The vulnerability results in a denial of service condition in modems due to the lack of a null check during the processing of IPv6 packets.

Affected Systems and Versions

Several Qualcomm Snapdragon products are affected, including but not limited to 9205 LTE Modem, FastConnect 6900, MDM8207, Snapdragon Wear 1300 Platform, and more.

Exploitation Mechanism

The vulnerability can be exploited by sending malicious IPv6 packets during ECM calls, triggering the null point dereference flaw and leading to a denial of service condition.

Mitigation and Prevention

Protecting systems from CVE-2022-25739 requires immediate action and long-term security practices:

Immediate Steps to Take

System administrators and users should apply patches or updates provided by Qualcomm to mitigate the vulnerability.

Long-Term Security Practices

Implement network security measures, monitor network traffic for anomalous patterns, and maintain up-to-date security configurations to prevent potential attacks.

Patching and Updates

Regularly check for security bulletins and updates from Qualcomm to address CVE-2022-25739 and ensure the security of affected Snapdragon products.