CVE-2017-11013 : Security Advisory and Response

Android for MSM, Firefox OS for MSM, QRD Android, and all Android releases from CAF using the Linux kernel are affected by a stack-based buffer overflow vulnerability in WLAN.

Understanding CVE-2017-11013

What is CVE-2017-11013?

This CVE describes a vulnerability in the UnpackCore function where the countOffset is incremented without proper validation, potentially leading to a buffer overflow.

The Impact of CVE-2017-11013

The vulnerability could allow an attacker to execute arbitrary code or crash the system, posing a security risk to affected devices.

Technical Details of CVE-2017-11013

Vulnerability Description

The issue arises from the lack of validation against "pIe->arraybound" within the UnpackCore function, enabling a stack-based buffer overflow in WLAN.

Affected Systems and Versions

Product: 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 occurs due to the unchecked increment of countOffset within the UnpackCore function, allowing an attacker to manipulate the arraybound parameter and trigger a buffer overflow.

Mitigation and Prevention

Immediate Steps to Take

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

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Regularly update and patch all software and firmware on affected devices.

Patching and Updates

Ensure that all affected systems are updated with the latest security patches to mitigate the risk of exploitation.