The device file system (devfs) in FreeBSD 5.x does not properly check parameters of the node type when creating a device node, which makes hidden devices available to attackers, who can then bypass restrictions on a jailed process.Referenceshttp://www.securityfocus.com/bid/14334http://www.osvdb.org/18123https://exchange.xforce.ibmcloud.com/vulnerabilities/21451http://secunia.com/advisories/16145http://securitytracker.com/id?1014536ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:17.devfs.asc
