COMMAND

    portmap(8)

SYSTEMS AFFECTED

    SunOS 4.1.x, IRIX. Not a  problem on Solaris because all  uids are
    32 bits.

PROBLEM

    NSF server in which  a client presents a  32-bit uid in which  the
    low-order bits are 0 gets  interpreted as root on the  server with
    16-nit uid. Any use  with a 32 bit  uid can read/write root  owned
    files.

SOLUTION

    For SunOS apply patch 1095935