http://bugs.winehq.org/show_bug.cgi?id=31114
Bug #: 31114 Summary: Wine is too insecure. Product: Wine Version: unspecified Platform: x86 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown AssignedTo: wine-bugs@winehq.org ReportedBy: franchukrom@gmail.com Classification: Unclassified
Program under wine can call Linux syscalls. The quick way to get the proof: compile this code: http://pastebin.com/NNxPcYxx with Windows version of nasm and run it under wine. It works. The program illustrates syscalls "write" (to print the message to a terminal) and "exit".
But users of wine usually believe that their filesystems can't be damaged if they configure wine's drives not to point on files outside .wine. It is wrong: if malware developer is aware of wine, he can use Linux syscalls to have a full access to the whole computer with rights of user that ran wine.
I think, wine should use chroot in order to avoid this problem.