CVE-2018-11886 Explained : Impact and Mitigation
Learn about CVE-2018-11886, an integer overflow vulnerability in WLAN function in Android releases from CAF using the Linux kernel, potentially leading to a buffer overflow. Find out the impacted systems, exploitation mechanism, and mitigation steps.
An integer overflow vulnerability in WLAN function in various Android releases from CAF using the Linux kernel can lead to a buffer overflow.
Understanding CVE-2018-11886
This CVE identifies a specific vulnerability related to integer overflow leading to a buffer overflow in WLAN function in Android releases.
What is CVE-2018-11886?
An integer overflow issue in the WLAN function of Android releases from CAF using the Linux kernel can result in a buffer overflow due to a missing check during MPDU data length calculation.
The Impact of CVE-2018-11886
The vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by triggering a buffer overflow in the WLAN function.
Technical Details of CVE-2018-11886
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability arises from an integer overflow that occurs during the calculation of MPDU data length in the WLAN function, leading to a buffer overflow.
Affected Systems and Versions
- Product: Android for MSM, Firefox OS for MSM, QRD Android
- Vendor: Qualcomm, Inc.
- Versions: All Android releases from CAF using the Linux kernel
Exploitation Mechanism
The absence of a check during the MPDU data length calculation in the WLAN function allows an attacker to trigger the integer overflow, leading to a buffer overflow.
Mitigation and Prevention
Protecting systems from CVE-2018-11886 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Qualcomm or relevant vendors promptly.
- Monitor security bulletins and updates from trusted sources.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch all software and firmware to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
- Educate users and IT staff on best practices for cybersecurity awareness.
Patching and Updates
- Stay informed about security advisories and updates from Qualcomm and other relevant vendors.
- Apply patches and updates as soon as they are available to mitigate the risk of exploitation.