CVE-2020-11203 : Security Advisory and Response
Learn about CVE-2020-11203, a stack overflow vulnerability in Qualcomm products. Find out the impacted systems, exploitation details, and mitigation steps to secure your devices.
A vulnerability in Qualcomm products could lead to a stack overflow under specific conditions.
Understanding CVE-2020-11203
What is CVE-2020-11203?
This CVE describes a stack-based buffer overflow in the Radio Interface Layer of various Qualcomm products.
The Impact of CVE-2020-11203
The vulnerability could allow an attacker to trigger a stack overflow by sending a large GSM/WCDMA broadcast config size to affected Qualcomm devices.
Technical Details of CVE-2020-11203
Vulnerability Description
The issue arises when the size of the broadcast config exceeds the capacity of a variable length array, leading to a stack overflow.
Affected Systems and Versions
- Products: Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables
- Versions: A wide range of versions including APQ8009W, MSM8996AU, SD855, and more
Exploitation Mechanism
An attacker can exploit this vulnerability by crafting a specific broadcast config size to trigger the overflow.
Mitigation and Prevention
Immediate Steps to Take
- Apply patches provided by Qualcomm to address the vulnerability
- Monitor for any unusual activity on affected devices
Long-Term Security Practices
- Regularly update firmware and software on Qualcomm devices
- Implement network segmentation to limit the impact of potential attacks
Patching and Updates
- Ensure all Qualcomm products are updated with the latest security patches to mitigate the risk of exploitation