CVE-2018-11945 : What You Need to Know

An absence of proper validation of input in the wireless service messaging module for data received from broadcast messages may result in a heap overflow vulnerability in various Snapdragon products, including Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IoT, Snapdragon Industrial IoT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables. This vulnerability affects versions MDM9150, MDM9206, MDM9607, MDM9615, MDM9625, MDM9635M, MDM9640, MDM9650, MDM9655, MSM8909W, MSM8996AU, QCS605, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 650/52, SD 675, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SD 8CX, SDA660, SDM439, SDM630, SDM660, SDX20, Snapdragon_High_Med_2016, and SXR1130.

Understanding CVE-2018-11945

Improper input validation in wireless service messaging module for data received from broadcast messages can lead to a heap overflow in various Snapdragon products.

What is CVE-2018-11945?

CVE-2018-11945 is a heap overflow vulnerability in multiple Snapdragon products due to improper input validation in the wireless service messaging module.

The Impact of CVE-2018-11945

This vulnerability could allow attackers to execute arbitrary code, leading to potential system crashes, denial of service, or even remote code execution on affected devices.

Technical Details of CVE-2018-11945

The technical details of this CVE include:

Vulnerability Description

Heap overflow vulnerability due to improper input validation in the wireless service messaging module.

Affected Systems and Versions

Affected products: Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IoT, Snapdragon Industrial IoT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables.
Affected versions: MDM9150, MDM9206, MDM9607, MDM9615, MDM9625, MDM9635M, MDM9640, MDM9650, MDM9655, MSM8909W, MSM8996AU, QCS605, and more.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted broadcast messages to the affected devices, triggering the heap overflow.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2018-11945:

Immediate Steps to Take

Apply security patches provided by Qualcomm to fix the vulnerability.
Monitor for any unusual activities on the affected devices.

Long-Term Security Practices

Regularly update the software and firmware of the affected devices.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Keep the devices up to date with the latest security patches and firmware releases from Qualcomm to mitigate the risk of exploitation.