CVE-2017-10996 Explained : Impact and Mitigation

Android devices with Qualcomm chips are vulnerable to out-of-bounds access in the c_show() function, potentially leading to crashes or reboots due to memory violations.

Understanding CVE-2017-10996

This CVE involves a vulnerability in Qualcomm products running Android releases from CAF using the Linux kernel.

What is CVE-2017-10996?

Out-of-bounds access can occur in the c_show() function of Qualcomm products with Android releases from CAF using the Linux kernel.
The issue stems from the improper NULL termination of compat_hwcap_str[].
While not fatal, this vulnerability can cause device crashes or reboots due to memory violations or out-of-bounds access.

The Impact of CVE-2017-10996

The vulnerability can lead to device instability, crashes, or reboots.
Attackers may exploit this issue to cause denial of service or potentially execute arbitrary code.

Technical Details of CVE-2017-10996

Android devices with Qualcomm chips are at risk due to the following:

Vulnerability Description

The vulnerability arises from the lack of proper NULL termination in compat_hwcap_str[].

Affected Systems and Versions

All Qualcomm products with Android releases from CAF using the Linux kernel are affected.

Exploitation Mechanism

Attackers can exploit this vulnerability to trigger out-of-bounds access in the c_show() function.

Mitigation and Prevention

Steps to address and prevent CVE-2017-10996:

Immediate Steps to Take

Apply security patches provided by Qualcomm or device manufacturers.
Monitor official sources for updates and advisories regarding this vulnerability.

Long-Term Security Practices

Regularly update device firmware and software to mitigate known vulnerabilities.
Implement network security measures to detect and block potential exploitation attempts.

Patching and Updates

Stay informed about security bulletins and patches released by Qualcomm and relevant vendors.