CVE-2018-11940 : What You Need to Know

A vulnerability in Qualcomm Snapdragon platforms could allow for out-of-bounds access due to a lack of length check in the WLAN function.

Understanding CVE-2018-11940

This CVE pertains to a specific vulnerability in Qualcomm Snapdragon platforms that could lead to security issues.

What is CVE-2018-11940?

The vulnerability arises from the improper use of memcpy in the WLAN function without verifying the length, potentially resulting in out-of-bounds access on various Snapdragon platforms.

The Impact of CVE-2018-11940

This vulnerability could be exploited by malicious actors to gain unauthorized access to sensitive data or execute arbitrary code on affected devices, posing a significant security risk.

Technical Details of CVE-2018-11940

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability stems from the lack of a length check before utilizing memcpy in the WLAN function, leaving the system vulnerable to out-of-bounds access.

Affected Systems and Versions

Affected Products: Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile
Affected Versions: MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCS605, SD 625, SD 636, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24, SXR1130

Exploitation Mechanism

The vulnerability can be exploited by crafting malicious inputs to trigger the memcpy function without proper length validation, leading to unauthorized memory access.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches and updates provided by Qualcomm to address the vulnerability promptly.
Monitor security bulletins and advisories from Qualcomm for any further instructions.

Long-Term Security Practices

Implement secure coding practices to prevent buffer overflow vulnerabilities.
Conduct regular security assessments and penetration testing to identify and mitigate potential security risks.

Patching and Updates

Ensure all affected systems are updated with the latest patches from Qualcomm to mitigate the vulnerability effectively.