The xterm program is a terminal emulator for the X Window System. It provides DEC VT102 and Tektronix 4014 compatible terminals for programs that cannot use the window system directly.
A bug was found in the way xterm packages were built that caused the pseudo-terminal device files of the xterm emulated terminals to be owned by the incorrect group. This flaw did not affect Red Hat Enterprise Linux 4 Update 4 and earlier. (CVE-2007-2797)
All users of xterm are advised to upgrade to this updated package, which contains a patch to correct this issue.