CVE-2017-0621

Vulnerability

The Qualcomm camera driver in Android kernel version 3.10 contains an elevation of privilege vulnerability (CVE-2017-0621). The bug resides in the camera driver code and can be triggered by a local malicious application. The vulnerability is rated High because it requires first compromising a privileged process to reach the vulnerable code path. The affected versions are Android kernel 3.10. [1]

Exploitation

An attacker must first compromise a privileged process on the device. Once that is achieved, the attacker can then exploit the vulnerability in the Qualcomm camera driver to execute arbitrary code. The exact exploitation steps are not detailed in the available reference, but the attack vector is local, requiring the malicious application to be installed and run on the device. [1]

Impact

Successful exploitation allows the attacker to execute arbitrary code within the context of the kernel. This results in a complete compromise of the system, including the ability to access sensitive data, modify system settings, and potentially gain persistent elevated privileges. The impact is high due to the kernel-level access. [1]

Mitigation

The fix for this vulnerability is included in the Android Security Bulletin for May 2017. Users should apply the security update provided by their device manufacturer. The bulletin references Qualcomm patch QC-CR#831322. No workarounds are mentioned. [1]