The information disclosure vulnerability does not allow remote code execution and so it has a lower security rating since it will be typically used in combination with other high-severity bug (like it happened with CVE-2013-3918) to improve effectiveness of exploitation. Also, this vulnerability requires attackers to have prior knowledge of path and filenames present on targeted machines in order to be successfully exploited. This vulnerability was not used to bypass ASLR, but simply to remotely determine the exact version of a certain DLL on disk in order to build a more precise ROP payload (it’s a local information disclosure rather than a memory address disclosure).