Vulnerability Assessment & Network Security Forums
If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Detailed Explanation for this Vulnerability Assessment
A number of vulnerabilities have been discovered in the Linux kernel.
This advisory covers only the i386 and alpha architectures. Other
architectures will be covered by separate advisories.
For the stable distribution (woody) on the i386 architecture, these
problems have been fixed in kernel-source-2.4.18 version 2.4.18-13,
kernel-image-2.4.18-1-i386 version 2.4.18-11, and
kernel-image-2.4.18-i386bf version 2.4.18-5woody4.
For the stable distribution (woody) on the alpha architecture, these
problems have been fixed in kernel-source-2.4.18 version 2.4.18-13 and
kernel-image-2.4.18-1-alpha version 2.4.18-10.
For the unstable distribution (sid) these problems are fixed in
kernel-source-2.4.20 version 2.4.20-9.
We recommend that you update your kernel packages.
If you are using the kernel installed by the installation system when
the "bf24" option is selected (for a 2.4.x kernel), you should install
the kernel-image-2.4.18-bf2.4 package. If you installed a different
kernel-image package after installation, you should install the
corresponding 2.4.18-1 kernel. You may use the table below as a
| If "uname -r" shows: | Install this package:
| 2.4.18-bf2.4 | kernel-image-2.4.18-bf2.4
| 2.4.18-386 | kernel-image-2.4.18-1-386
| 2.4.18-586tsc | kernel-image-2.4.18-1-586tsc
| 2.4.18-686 | kernel-image-2.4.18-1-686
| 2.4.18-686-smp | kernel-image-2.4.18-1-686-smp
| 2.4.18-k6 | kernel-image-2.4.18-1-k6
| 2.4.18-k7 | kernel-image-2.4.18-1-k7
NOTE: This kernel is binary compatible with the previous kernel
security update, but not binary compatible with the corresponding
kernel included in Debian 3.0r1. If you have not already applied the
previous security update (kernel-image-2.4.18-bf2.4 version
2.4.18-5woody1 or any of the 2.4.18-1-* kernels), then any custom
modules will need to be rebuilt in order to work with the new kernel.
New PCMCIA modules are provided for all of the above kernels.
NOTE: A system reboot will be required immediately after the upgrade
in order to replace the running kernel. Remember to read carefully
and follow the instructions given during the kernel upgrade process.
Solution : http://www.debian.org/security/2003/dsa-358
Network Security Threat Level: High
Networks Security ID: 10330, 8042, 8233
Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi
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