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Immunix OS Security Advisory: sysklogd

Jun 15, 2001, 13:52 (0 Talkback[s])
Date: Thu, 14 Jun 2001 16:55:57 -0700
From: Immunix Security Team <security@wirex.com>
Subject: sysklogd update -- Immunix OS 6.2, 7.0-beta, 7.0

        Immunix OS Security Advisory

Packages updated:       sysklogd
Affected products:      Immunix OS 6.2, 7.0-beta, and 7.0
Bugs fixed:             immunix/1623
Date:                   Thu Jun 14 2001
Advisory ID:            IMNX-2001-70-026-01
Author:                 Seth Arnold <sarnold@wirex.com>

  The Linux kernel logging daemon klogd distributed in the sysklogd
  package can be forced to quit if it receives a null byte in a log
  message from the Linux kernel. These updates have applied a patch
  from roessler at does-not-exist dot org to fix this problem.

  Because an attacker would need to convince the kernel to log a null
  byte in order to exploit this problem, we don't think it is an issue
  for most sites; however, the bug was found when a kernel module
  supplied with kernel 2.4 attempted to print a null byte.

  We recommend Immunix OS users upgrade their sysklogd packages.


Package names and locations:
  Precompiled binary packages for Immunix 6.2 are available at:

  Source packages for Immunix 6.2 are available at:

  Precompiled binary packages for Immunix 7.0-beta and 7.0 are available at:

  Source package for Immunix 7.0-beta and 7.0 is available at:

md5sums of the packages:
  8f1dca74c72179aba3a04226f916b4a2  RPMS/sysklogd-1.3.31-18_StackGuard.i386.rpm
  4fdf88fd615bce2d730915d5812eaf97  SRPMS/sysklogd-1.3.31-18_StackGuard.src.rpm

  577a073a871475704a68fde712a90b1e  RPMS/sysklogd-1.3.33-9_imnx.i386.rpm
  3add2ae895e9c4dad1e9737807cc1f30  SRPMS/sysklogd-1.3.33-9_imnx.src.rpm

GPG verification:                                                          

  Our public key is available at <http://wirex.com/security/GPG_KEY>.      

  *** NOTE *** This key is different from the one used in advisories       

  IMNX-2001-70-020-01 and earlier.

Online version of all Immunix 6.2 updates and advisories:

Online version of all Immunix 7.0-beta updates and advisories:

Online version of all Immunix 7.0 updates and advisories:

  Ibiblio is graciously mirroring our updates, so if the links above are
  slow, please try:
  or one of the many mirrors available at:

Contact information:
  To report vulnerabilities, please contact security@wirex.com. WireX
  attempts to conform to the RFP vulnerability disclosure protocol