(Pwn2Own) Apple OS X libATSServer Heap-based Buffer Overflow Remote Code Execution Vulnerability

2016-05-27T00:00:00
ID ZDI-16-361
Type zdi
Reporter lokihardt
Modified 2016-06-22T00:00:00

Description

This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Apple OS X. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the GetUncompressedBitmapRepresentation method. The issue lies in the failure to properly validate the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute arbitrary code under the context of the user.