CVE-2018-11889 : Exploit Details and Defense Strategies
Learn about CVE-2018-11889, a vulnerability in Android releases from CAF using the Linux kernel that allows accessing invalid memory. Find out the impact, affected systems, and mitigation steps.
Android releases from CAF using the Linux kernel are vulnerable to accessing invalid memory due to a specific function. Learn more about the impact, technical details, and mitigation steps.
Understanding CVE-2018-11889
Accessing invalid memory may occur in various Android releases due to a specific function utilizing the Linux kernel.
What is CVE-2018-11889?
This CVE pertains to the issue of accessing invalid memory when requesting rssi timeout in Android releases from CAF that use the Linux kernel. The problem arises from the freeing of local variable 'context' stack data of the wlan function.
The Impact of CVE-2018-11889
The vulnerability can lead to potential security breaches and unauthorized access to sensitive information on affected systems.
Technical Details of CVE-2018-11889
Android systems using the Linux kernel are susceptible to memory access issues due to the freeing of specific stack data.
Vulnerability Description
The problem occurs when requesting rssi timeout in Android releases from CAF, leading to the access of invalid memory due to the freeing of local variable 'context' stack data of the wlan function.
Affected Systems and Versions
- Android for MSM
- Firefox OS for MSM
- QRD Android from CAF
Exploitation Mechanism
The issue arises from the freeing of local variable 'context' stack data of the wlan function, allowing unauthorized access to memory.
Mitigation and Prevention
Steps to address and prevent the CVE-2018-11889 vulnerability.
Immediate Steps to Take
- Apply relevant patches and updates provided by the vendor.
- Monitor security bulletins for any further instructions or updates.
Long-Term Security Practices
- Regularly update and patch all software and systems to prevent vulnerabilities.
- Implement network segmentation and access controls to limit unauthorized access.
- Conduct regular security audits and assessments to identify and address potential risks.
Patching and Updates
Ensure that all affected systems are updated with the latest patches and security fixes to mitigate the vulnerability.