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Denial of Service on the 2.2 kernel Print E-mail
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Posted by Team   
SuSE The Linux kernel 2.2.x doesn't correctly parse the IP options, which leads to kernel panic.

                        SuSE Security Announcement

        Package:  Linux kernel 2.2.x
        Date:     Thu Jun  3 19:50:05 CEST 1999
        Affected: All Linux systems using kernel 2.2.x


A security hole were discovered in the package mentioned above.
Please update as soon as possible or disable the service if you are using
this software on your SuSE Linux installation(s).

Other Linux distributions or operating systems might be affected as
well, please contact your vendor for information about this issue.

Please note, that that we provide this information on as "as-is" basis only.
There is no warranty whatsoever and no liability for any direct, indirect or
incidental damage arising from this information or the installation of
the update package.


1. Problem Description

    The Linux kernel 2.2.x doesn't correctly parse the IP options, which
    leads to kernel panic.

2. Impact

    Linux machines running kernel 2.2.x could be shut down over the network
    by sending malicious formated ICMP packets.

3. Solution

    Install the fixed kernel from our ftp server.


Here is the md5 checksum of the upgrade package, please verify these
before installing the new package:

d7da41803cde484fac910dc0eaa0a5df  lx_suse-2.2.7.SuSE-3.i386.rpm
c106a0465630260cfa4181c2c0e84ec4  linux-2.2.7.SuSE.tgz

You will find the updates on our ftp-Server:

Webpage for patches:

or try the following web pages for a list of mirrors:

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