CVE-2018-11939 : Exploit Details and Defense Strategies
Learn about CVE-2018-11939 affecting Qualcomm Snapdragon devices, causing WLAN function delays due to multiple ACS scan requests. Find mitigation steps and patching recommendations here.
Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile devices by Qualcomm may experience WLAN function delays due to multiple ACS scan requests.
Understanding CVE-2018-11939
The vulnerability in WLAN function affects various Qualcomm Snapdragon devices, potentially causing delays under specific conditions.
What is CVE-2018-11939?
The WLAN function in Snapdragon devices may encounter delays when multiple ACS scan requests are made simultaneously, impacting device performance.
The Impact of CVE-2018-11939
The vulnerability could lead to delays in WLAN function, affecting the responsiveness and usability of the affected Snapdragon devices.
Technical Details of CVE-2018-11939
Qualcomm Snapdragon devices are susceptible to WLAN function delays due to multiple ACS scan requests.
Vulnerability Description
The issue arises from the WLAN function in Snapdragon Auto, Consumer IOT, Industrial IOT, and Mobile devices when multiple ACS scan requests are initiated concurrently.
Affected Systems and Versions
- Products: Snapdragon Auto, Consumer IOT, Industrial IOT, Mobile
- Versions: MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8909W, QCA6574AU, SD 210/212/205, SD 615/16/415, SD 625, SD 650/52, SD 820, SDX20
Exploitation Mechanism
The vulnerability occurs when multiple ACS scan requests are triggered simultaneously, causing delays in WLAN function execution.
Mitigation and Prevention
Immediate action and long-term security practices can help mitigate the impact of CVE-2018-11939.
Immediate Steps to Take
- Monitor network activity for unusual ACS scan requests
- Implement network segmentation to isolate potentially compromised devices
- Apply vendor-recommended patches and updates promptly
Long-Term Security Practices
- Regularly update firmware and software to address known vulnerabilities
- Conduct security assessments to identify and remediate potential weaknesses
Patching and Updates
- Install patches provided by Qualcomm to address the WLAN function delay issue in affected Snapdragon devices