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Vulnerability golddig Affected golddig users Description Following is based on FreeBSD Security Advisory. Golddig is an X11 game provided as part of the FreeBSD ports collection. The golddig port erroneously installs a level-creation utility setuid root, which allows users to overwrite the contents of arbitrary local files. It is not believed that any elevation of privileges is possible with this vulnerability because the contents of the file are a textual representation of a golddig game level which is highly constrained. The golddig port is not installed by default, nor is it "part of FreeBSD" as such: it is part of the FreeBSD ports collection, which contains over 3200 third-party applications in a ready-to-install format. The ports collection shipped with FreeBSD 4.0 contains this problem since it was discovered after the release. An unprivileged local user can overwrite the contents of any file, although they are restricted in the possible contents of the new file. If you have not chosen to install the golddig port/package, then your system is not vulnerable to this problem. Solution Workaround is one of the following: 1) Deinstall the golddig port/package, if you you have installed it. 2) Remove the setuid bit from /usr/local/bin/makelev. This will mean unprivileged users cannot create or modify golddig levels except in their own directories. Solution is one of the following: 1) Upgrade your entire ports collection and rebuild the golddig port. 2) Reinstall a new package dated after the correction date, obtained from: ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/games/golddig-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/games/golddig-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/games/golddig-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/games/golddig-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/games/golddig-2.0.tgz 3) download a new port skeleton for the golddig port from: http://www.freebsd.org/ports/ and use it to rebuild the port.