wine -- information disclosure due to insecure temporary file handling

Due to insecure temporary file creation in the Wine Windows
emulator, it is possible for any user to read potentially
sensitive information from temporary registry files.

When a Win32 application is launched by wine, wine makes
a dump of the Windows registry in /tmp with name
regxxxxyyyy.tmp , where xxxxxx is the pid in hexadecimal
value of the current wine process and yyyy is an integer
value usually equal to zero.
regxxxxyyyy.tmp is created with 0644 (-rw-r–r–)
permissions. This could represent a security problem in a
multi-user environment. Indeed, any local user could
access to windows regstry’s dump and get sensitive
information, like passwords and other private data.