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CVE-2017-18171 Explained : Impact and Mitigation

Learn about CVE-2017-18171 affecting Snapdragon Mobile devices by Qualcomm, Inc. due to memory corruption from improper input validation in Bluetooth Controller function.

Snapdragon Mobile devices by Qualcomm, Inc. are susceptible to memory corruption due to improper input validation in Bluetooth Controller function.

Understanding CVE-2017-18171

What is CVE-2017-18171?

Potential memory corruption can occur in Snapdragon Mobile devices running specific versions due to improper input validation for GATT data packets in the Bluetooth Controller function.

The Impact of CVE-2017-18171

This vulnerability could lead to memory corruption in affected Snapdragon Mobile devices, potentially enabling attackers to execute arbitrary code or cause system crashes.

Technical Details of CVE-2017-18171

Vulnerability Description

The vulnerability arises from improper input validation for GATT data packets received in the Bluetooth Controller function of Snapdragon Mobile devices.

Affected Systems and Versions

        Snapdragon Mobile devices running the following versions are affected:
              QCA9379
              SD 210/SD 212/SD 205
              SD 410/12
              SD 425, SD 427, SD 430, SD 435, SD 450
              SD 615/16/SD 415
              SD 625, SD 650/52
              SD 820, SD 835, SD 845, SD 850
              SDM630, SDM636, SDM660, SDM710
              Snapdragon_High_Med_2016

Exploitation Mechanism

The vulnerability can be exploited by sending malicious GATT data packets to the Bluetooth Controller function, triggering memory corruption.

Mitigation and Prevention

Immediate Steps to Take

        Apply patches provided by Qualcomm to address the vulnerability.
        Disable Bluetooth if not required to reduce the attack surface.

Long-Term Security Practices

        Regularly update device firmware and software to protect against known vulnerabilities.
        Implement network segmentation to isolate Bluetooth-enabled devices from critical systems.

Patching and Updates

        Ensure all Snapdragon Mobile devices are updated with the latest firmware and security patches to mitigate the risk of exploitation.

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