Apple macOS AppleGraphicsDevicePolicy Out-Of-Bounds Access Privilege Escalation Vulnerability
Vulnerability Details
This vulnerability allows local attackers to escalate privileges on vulnerable installations of Apple macOS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the AGDPClientControl service. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges to the level of the kernel.
Additional Details
Apple has issued an update to correct this vulnerability. More details can be found at:
https://support.apple.com/kb/HT201222
Disclosure Timeline
- 2018-07-03 - Vulnerability reported to vendor
- 2018-10-30 - Coordinated public release of advisory
- 2018-10-30 - Advisory Updated
Credit
Anonymous
