The remote host is missing an update to kernel-source-2.4.27 (2.4.27-10sarge6) announced via advisory DSA 1503-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201503-1

Several local and remote vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code. For complete details, please visit the referenced security advisories. The following matrix lists additional packages that were rebuilt for compatibility with or to take advantage of this update: Debian 3.1 (sarge) alsa-modules-i386 1.0.8+2sarge2 kernel-image-2.4.27-arm 2.4.27-2sarge6 kernel-image-2.4.27-m68k 2.4.27-3sarge6 kernel-image-speakup-i386 2.4.27-1.1sarge5 kernel-image-2.4.27-alpha 2.4.27-10sarge6 kernel-image-2.4.27-s390 2.4.27-2sarge6 kernel-image-2.4.27-sparc 2.4.27-9sarge6 kernel-image-2.4.27-i386 2.4.27-10sarge6 kernel-image-2.4.27-ia64 2.4.27-10sarge6 kernel-patch-2.4.27-mips 2.4.27-10.sarge4.040815-3 kernel-patch-powerpc-2.4.27 2.4.27-10sarge6 kernel-latest-2.4-alpha 101sarge3 kernel-latest-2.4-i386 101sarge2 kernel-latest-2.4-s390 2.4.27-1sarge2 kernel-latest-2.4-sparc 42sarge3 i2c 1:2.9.1-1sarge2 lm-sensors 1:2.9.1-1sarge4 mindi-kernel 2.4.27-2sarge5 pcmcia-modules-2.4.27-i386 3.2.5+2sarge2 hostap-modules-i386 1:0.3.7-1sarge3 systemimager 3.2.3-6sarge5 We recommend that you upgrade your kernel package immediately and reboot