The remote host is missing updates announced in advisory CLA-2004:866.
QT[1] is a cross-platform GUI toolkit mostly used by KDE.
Chris Evans found[2] a heap overflow vulnerability[3] in the QT library when handling 8-bit RLE encoded BMP files. An attacker could use this to compromise the account used to view the specially crafted image. Further investigations found similar vulnerabilities in XPM[4], GIF[5] and JPEG image handlers.
Solution: The apt tool can be used to perform RPM package upgrades by running 'apt-get update' followed by 'apt-get upgrade'