The remote host is missing updates announced in advisory CLA-2005:924.
XFree86[1] is a freely redistributable open-source implementation of the X Window System, which is a client/server interface between display hardware and the desktop environment.
Chris Evans has discovered multiple integer[2] and stack[3] overflow vulnerabilities in the X Pixmap library, libXpm, which is a part of the X Window System. These overflows can be exploited by openning a malicious XPM file, which can crash applications that are dependent on libXpm.
Solution: The apt tool can be used to perform RPM package upgrades by running 'apt-get update' followed by 'apt-get upgrade'