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CVE-2018-5916 Explained : Impact and Mitigation

Learn about CVE-2018-5916, a buffer overread vulnerability in Snapdragon Automobile, Mobile, and Wear devices, potentially exposing information in the MODEM. Find out affected systems, versions, and mitigation steps.

A buffer overread issue has been identified in Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear devices, potentially exposing information in the MODEM.

Understanding CVE-2018-5916

This CVE involves a buffer overread vulnerability affecting various Qualcomm Snapdragon products and versions.

What is CVE-2018-5916?

This vulnerability occurs during the decoding of PDP modify requests or network-initiated secondary PDP activation on Snapdragon devices.

The Impact of CVE-2018-5916

The vulnerability could lead to information exposure in the MODEM of affected devices, potentially allowing unauthorized access to sensitive data.

Technical Details of CVE-2018-5916

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The buffer overread issue affects Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear devices running specific versions listed in the CVE details.

Affected Systems and Versions

        Products: Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear
        Vendor: Qualcomm, Inc.
        Versions: MDM9206, MDM9607, MDM9615, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, MSM8996AU, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 625, SD 650/52, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, SDA660, SDA845, SDX20, SXR1130

Exploitation Mechanism

The issue arises during the decoding process of PDP modify requests or network-initiated secondary PDP activation on the affected Snapdragon devices.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2018-5916.

Immediate Steps to Take

        Apply security patches provided by Qualcomm promptly.
        Monitor official sources for updates and advisories regarding this vulnerability.

Long-Term Security Practices

        Regularly update firmware and software on affected devices.
        Implement network security measures to prevent unauthorized access.

Patching and Updates

        Ensure all affected devices are updated with the latest firmware and security patches to address the vulnerability.

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