An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.



To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.
The LHA.sys driver before 1.1.1811.2101 in LG Device Manager exposes functionality that allows low-privileged users to read and write arbitrary physical memory via specially crafted IOCTL requests and elevate system privileges. This occurs because the device object has an associated symbolic link and an open DACL
During startup the PIA Windows service(pia-service.exe) loads the OpenSSL library from C:\Program Files\Private Internet Access\libeay32.dll. This library attempts to load the C:\etc\ssl\openssl.cnf configuration file. By default on Windows systems, authenticated users can create directories under C:\. A low privileged user can create a openssl.cnf configuration file to load a malicious OpenSSL engine library resulting in the arbitrary code execution as SYSTEM when the service starts.
The vulnerable is a Local Privilege Escalation in AgentSvc.exe. This service creates a global section object and a corresponding global event that is signaled whenever a process that writes to the shared memory wants the data to be processed by the service. The vulnerability lies in the weak permissions that are affected to both these objects allowing "Everyone" including unprivileged users to manipulate the shared memory and the event.