CVE-2017-0749

Vulnerability

A elevation of privilege vulnerability exists in the Android kernel (based on upstream Linux). The exact code path is not publicly detailed, but it allows a local attacker to escalate privileges. Affected versions include all Android kernel builds prior to the August 2017 security update. The vulnerability is Android-specific and does not affect upstream Linux distributions [2][3].

Exploitation

An attacker must have local access to the device and the ability to execute arbitrary code. No user interaction is required. The exploitation steps are not publicly disclosed, but the vulnerability can be triggered by a crafted application or system call.

Impact

Successful exploitation results in elevation of privilege, allowing the attacker to execute arbitrary code in the kernel context. This can lead to full compromise of the device, including access to sensitive data and system functions.

Mitigation

Google released a fix in the Android Security Bulletin dated August 1, 2017 [1]. Users should apply the OTA update for their device. No workaround is available. The vulnerability is not present in upstream Linux kernels, so no action is needed for non-Android systems.