CVE-2019-2311 Explained : Impact and Mitigation

A buffer overflow vulnerability in the WLAN handler of various Qualcomm Snapdragon devices poses a security risk due to insufficient validation of destination buffer sizes.

Understanding CVE-2019-2311

This CVE affects a wide range of Qualcomm Snapdragon devices across different product lines.

What is CVE-2019-2311?

The vulnerability stems from a lack of validation of destination buffer sizes before copying data, potentially leading to a buffer overflow in the WLAN handler.

The Impact of CVE-2019-2311

The vulnerability could allow attackers to execute arbitrary code or cause a denial of service by exploiting the buffer overflow in affected Qualcomm Snapdragon devices.

Technical Details of CVE-2019-2311

Qualcomm Snapdragon devices are affected by this vulnerability, including various versions of the following product lines:

Vulnerability Description

The buffer overflow vulnerability in the WLAN handler is caused by the lack of validation of destination buffer sizes before copying data.

Affected Systems and Versions

The vulnerability impacts a wide range of Qualcomm Snapdragon devices, including APQ8009, APQ8017, APQ8053, APQ8096, and many more across different product lines.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious input to trigger a buffer overflow in the WLAN handler of affected Qualcomm Snapdragon devices.

Mitigation and Prevention

To address CVE-2019-2311 and enhance overall security:

Immediate Steps to Take

Apply patches provided by Qualcomm to mitigate the vulnerability.
Monitor vendor communications for updates and security advisories.

Long-Term Security Practices

Regularly update firmware and software on affected devices.
Implement network segmentation and access controls to limit exposure to potential attacks.

Patching and Updates

Install firmware updates and security patches from Qualcomm to address the vulnerability and enhance device security.