CVE-2019-2346 Explained : Impact and Mitigation

A vulnerability in Qualcomm chipsets can lead to firmware entering a loop of memory overwriting when a scan command is initiated from the host.

Understanding CVE-2019-2346

What is CVE-2019-2346?

The vulnerability results from improper validation, affecting various Snapdragon platforms and chipsets.

The Impact of CVE-2019-2346

The vulnerability can potentially lead to a denial of service condition or arbitrary code execution.

Technical Details of CVE-2019-2346

Vulnerability Description

The issue arises from improper validation, causing the firmware to overwrite memory in a loop during a scan command.

Affected Systems and Versions

Affected Systems: Snapdragon Compute, Snapdragon Consumer IoT, Snapdragon Industrial IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking
Affected Chipsets: IPQ8074, QCA8081, QCS404, QCS405, QCS605, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 712 / SD 710 / SD 670, SD 820, SD 835, SD 845 / SD 850, SD 855, SD 8CX, SDA660, SDM630, SDM660

Exploitation Mechanism

The vulnerability occurs when a scan command is initiated from the host, triggering the firmware to enter a loop of memory overwriting.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Qualcomm to address the vulnerability.
Monitor Qualcomm's security bulletins for updates and advisories.

Long-Term Security Practices

Regularly update firmware and software to the latest versions.
Implement network segmentation and access controls to limit exposure.

Patching and Updates

Install firmware updates and patches released by Qualcomm to mitigate the vulnerability.