patch for DoS attack

[_MHz_]

 Vgike akomi patch gia ta SuSE Linux v6.1
prin 2-3 meres to epiasa apo ton ipefthino twn security:

____________________________________________________________________________
__

                        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.

____________________________________________________________________________
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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.

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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
____________________________________________________________________________
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You will find the updates on our ftp-Server:

  ftp://ftp.suse.com/pub/SuSE-Linux/suse_update/kernel/linux-2.2.7.SuSE.tgz

ftp://ftp.suse.com/pub/SuSE-Linux/suse_update/suse61/d1/lx_suse-2.2.7.SuSE-3
.i386.rpm

Webpage for patches:
        http://www.suse.de/patches/index.html

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

        http://www.suse.de/ftp.html
        http://www.suse.com/ftp_new.html




=====================================
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=====================================
----- Original Message -----
From: D.A.Glynos <glynos at dial.pipex.com>
To: Linux-Greek-Users <linux-greek-users at hellug.gr>
Sent: 04 June 1999 22:40
Subject: patch for DoS attack


>
> kserw kserw:) den eimaste bugtraq,
> apla epeidi einai sxetika mikro to patch skeftika oti tha itan kali idea
> na to kanw post edw.
>
> Simfwna me ton Cox, lunei to provlima twn teleutewn
> DoS attacks stous 2.2.x pirines:
>
> --- ../linux.vanilla/net/ipv4/ip_options.c      Wed May 12 16:49:38 1999
> +++ net/ipv4/ip_options.c       Tue Jun  1 22:11:46 1999
> @@ -452,7 +452,6 @@
>  error:
>         if (skb) {
>                 icmp_send(skb, ICMP_PARAMETERPROB, 0,
> htonl((pp_ptr-iph)<<24));
> -               kfree_skb(skb);
>         }
>         return -EINVAL;
>  }
>
>
> --
> ====================================================================
> Gia boithia (h na diagrafhte) e-mail sto majordomo at hellug.gr
> Ta archives tis listas einai sto http://lists.hellug.gr/archives
> prin steilete kapoia erothsh psakte mipos exei hdh apanththei.
> Gia opoiodipote problima stilte e-mail ston
owner-linux-greek-users at hellug.gr
> ====================================================================
>

--
====================================================================
Gia boithia (h na diagrafhte) e-mail sto majordomo at hellug.gr
Ta archives tis listas einai sto http://lists.hellug.gr/archives
prin steilete kapoia erothsh psakte mipos exei hdh apanththei.
Gia opoiodipote problima stilte e-mail ston owner-linux-greek-users at hellug.gr
====================================================================