CVE-2017-17765 : What You Need to Know

Android for MSM, Firefox OS for MSM, QRD Android by Qualcomm, Inc. are affected by an Integer Overflow to Buffer Overflow vulnerability in WLAN.

Understanding CVE-2017-17765

What is CVE-2017-17765?

The vulnerability arises from insufficient validation of multiple values received from firmware in wma_get_ll_stats_ext_buf() in Qualcomm products using the Linux kernel and Android releases from CAF. This flaw can lead to an integer overflow, potentially resulting in a buffer overflow.

The Impact of CVE-2017-17765

The vulnerability could be exploited to trigger a buffer overflow, potentially allowing an attacker to execute arbitrary code or crash the system.

Technical Details of CVE-2017-17765

Vulnerability Description

The issue stems from inadequate validation of values from firmware in wma_get_ll_stats_ext_buf(), which are used to determine buffer sizes, making them susceptible to integer 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 can be exploited by manipulating the values received from firmware to trigger an integer overflow, leading to a buffer overflow.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Qualcomm or the respective vendor promptly.
Monitor vendor security bulletins for updates and advisories.

Long-Term Security Practices

Implement secure coding practices to prevent integer overflow vulnerabilities.
Regularly update and patch systems to address known security issues.
Conduct security assessments and audits to identify and mitigate vulnerabilities.

Patching and Updates

Ensure all Qualcomm products with affected versions receive the necessary security patches.