b1085e570b
use O_NOFOLLOW to open the existing lock file, so symbolic links aren't followed, thus avoid revealing if it point to an existing file. Signed-off-by: Matthieu Herrb <matthieu.herrb@laas.fr> Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com> Fix CVE-2011-4029: File permission change vulnerability. Use fchmod() to change permissions of the lock file instead of chmod(), thus avoid the race that can be exploited to set a symbolic link to any file or directory in the system. Signed-off-by: Matthieu Herrb <matthieu.herrb@laas.fr> Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com> |
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options.mk | ||
PLIST |