CVE-2017-11081 Explained : Impact and Mitigation

A buffer overflow vulnerability affecting various software platforms, including Android for MSM, Firefox OS for MSM, QRD Android, and all Android releases from CAF using the Linux kernel.

Understanding CVE-2017-11081

What is CVE-2017-11081?

This CVE identifies a buffer overflow vulnerability in specific APIs used in Android for MSM, Firefox OS for MSM, QRD Android, and all Android releases from CAF that utilize the Linux kernel.

The Impact of CVE-2017-11081

The vulnerability allows attackers to potentially execute arbitrary code or cause a denial of service by exploiting the buffer overflow.

Technical Details of CVE-2017-11081

Vulnerability Description

The hdd_parse_setrmcenable_command and hdd_parse_setrmcactionperiod_command APIs are susceptible to buffer overflow due to the defined buffer capacity of 32 bytes, allowing data exceeding this limit to be copied.

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

Attackers can exploit this vulnerability by crafting malicious input data that exceeds the buffer size, leading to buffer overflow and potential code execution.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Qualcomm or relevant software vendors to address the vulnerability.
Monitor vendor security bulletins for updates and apply them promptly.

Long-Term Security Practices

Implement input validation mechanisms to prevent buffer overflow vulnerabilities.
Conduct regular security assessments and code reviews to identify and mitigate similar issues.

Patching and Updates

Regularly update software and firmware to ensure the latest security patches are applied to mitigate known vulnerabilities.