CVE-2017-17764 : Exploit Details and Defense Strategies

Android for MSM, Firefox OS for MSM, QRD Android by Qualcomm, Inc. are affected by an integer overflow vulnerability leading to a buffer overflow when using Android releases from CAF with the Linux kernel.

Understanding CVE-2017-17764

This CVE involves a validation issue in Qualcomm products that could result in a security risk due to an integer overflow leading to a buffer overflow.

What is CVE-2017-17764?

The vulnerability in Qualcomm products occurs when using Android releases from CAF with the Linux kernel. It stems from improper validation of the num_failure_info value from firmware, potentially causing an integer overflow and subsequent buffer overflow.

The Impact of CVE-2017-17764

The vulnerability could be exploited to trigger a buffer overflow, posing a security risk to affected systems.

Technical Details of CVE-2017-17764

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The issue lies in the validation of the num_failure_info value from firmware in the wma_rx_aggr_failure_event_handler() function, leading to an integer overflow and subsequent buffer overflow.

Affected Systems and Versions

Products: Android for MSM, Firefox OS for MSM, QRD Android
Vendor: Qualcomm, Inc.
Versions: All Android releases from CAF using the Linux kernel

Exploitation Mechanism

The vulnerability arises from the improper validation of the num_failure_info value from firmware, which can result in an integer overflow, subsequently leading to a buffer overflow.

Mitigation and Prevention

To address CVE-2017-17764, follow these mitigation strategies:

Immediate Steps to Take

Apply patches provided by Qualcomm or the relevant vendor promptly.
Monitor security bulletins and updates from the vendor for any remediation steps.

Long-Term Security Practices

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

Patching and Updates

Stay informed about security advisories and patches released by Qualcomm or the affected vendor.
Apply patches as soon as they are available to mitigate the vulnerability effectively.