CVE-2023-43511 Explained : Impact and Mitigation

This article provides detailed information about CVE-2023-43511, a vulnerability affecting Qualcomm Snapdragon products.

Understanding CVE-2023-43511

This section delves into the specifics of the CVE-2023-43511 vulnerability affecting Qualcomm Snapdragon products.

What is CVE-2023-43511?

The CVE-2023-43511 vulnerability involves a Transient DOS issue in WLAN firmware when parsing IPv6 extension headers in the presence of

IPPROTO_NONE

as the next header.

The Impact of CVE-2023-43511

The vulnerability's impact is rated as high due to its potential to cause availability disruption while receiving specific IPv6 packets.

Technical Details of CVE-2023-43511

This section elaborates on the technical aspects of CVE-2023-43511 affecting various Qualcomm Snapdragon products.

Vulnerability Description

The vulnerability triggers a loop with an unreachable exit condition (infinite loop) in WLAN firmware, leading to potential denial of service (DOS) attacks.

Affected Systems and Versions

Numerous Qualcomm Snapdragon products are affected, including Snapdragon 5G IoT Modem, LTE Modem, and various mobile and IoT platform versions.

Exploitation Mechanism

The vulnerability can be exploited by sending specifically crafted IPv6 packets with

IPPROTO_NONE

as the next header, triggering the DOS condition.

Mitigation and Prevention

In response to CVE-2023-43511, Qualcomm has provided mitigation measures to address the vulnerability.

Immediate Steps to Take

Implement firmware patches and updates provided by Qualcomm to fix the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Adopt proactive security measures, such as network segmentation and traffic filtering, to mitigate the risk of similar vulnerabilities affecting WLAN firmware.

Patching and Updates

Regularly monitor Qualcomm security bulletins and apply recommended patches and updates to ensure the ongoing security of Snapdragon products.