CVE-2018-11828 : Security Advisory and Response
Learn about CVE-2018-11828 affecting Qualcomm Snapdragon Mobile devices. Discover the impact, affected versions, and mitigation steps for this firmware vulnerability.
CVE-2018-11828 was published on October 26, 2018, by Qualcomm, Inc. The vulnerability affects Snapdragon Mobile devices running specific versions, leading to uncontrolled resource consumption in WLAN.
Understanding CVE-2018-11828
This CVE involves a firmware issue on Snapdragon Mobile devices that causes the device to get stuck in a loop while attempting to acquire random ADC samples.
What is CVE-2018-11828?
The vulnerability occurs when the firmware tries to obtain a randomly generated MAC address using a new software random number generator, resulting in the device becoming trapped in a loop due to constant ADC values.
The Impact of CVE-2018-11828
The vulnerability can lead to uncontrolled resource consumption in WLAN, potentially affecting the device's performance and stability.
Technical Details of CVE-2018-11828
Qualcomm Snapdragon Mobile devices running the following versions are affected:
- SD 210/SD 212/SD 205
- SD 425
- SD 430
- SD 450
- SD 625
- SD 650/52
Vulnerability Description
The issue arises from the firmware attempting to acquire random ADC samples, causing the device to enter a loop due to constant ADC values.
Affected Systems and Versions
Snapdragon Mobile devices running the specified versions are vulnerable to this issue.
Exploitation Mechanism
The vulnerability is triggered when the firmware tries to obtain a randomly generated MAC address using a new software random number generator.
Mitigation and Prevention
If you are affected by CVE-2018-11828, consider the following steps:
Immediate Steps to Take
- Contact Qualcomm for guidance and updates on addressing the vulnerability.
- Implement firmware updates provided by Qualcomm to mitigate the issue.
Long-Term Security Practices
- Regularly update firmware and software on your Snapdragon Mobile devices.
- Monitor security bulletins and advisories from Qualcomm for any future vulnerabilities.
Patching and Updates
- Apply patches and updates released by Qualcomm to address CVE-2018-11828 and enhance the security of your devices.