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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                     ESB-2003.0016 -- RHSA-2002:290-07
                  Updated Ethereal packages are available
                              10 January 2003

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                Ethereal
Vendor:                 Red Hat
Operating System:       Red Hat Linux 7.2
                        Red Hat Linux 7.3
                        Red Hat Linux 8.0
                        Linux
                        UNIX
Impact:                 Execute Arbitrary Code/Commands
                        Denial of Service
Access Required:        Remote

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- ---------------------------------------------------------------------
                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          Updated Ethereal packages are available
Advisory ID:       RHSA-2002:290-07
Issue date:        2003-01-09
Updated on:        2003-01-08
Product:           Red Hat Linux
Keywords:          ethereal dissector PPP LMP TDS BGP
Cross references:  
Obsoletes:         RHSA-2002:169
CVE Names:         CAN-2002-1355 CAN-2002-1356
- ---------------------------------------------------------------------

1. Topic:

Updated Ethereal packages are available which fix various security issues.

2. Relevant releases/architectures:

Red Hat Linux 7.2 - i386, ia64
Red Hat Linux 7.3 - i386
Red Hat Linux 8.0 - i386

3. Problem description:

Ethereal is a package designed for monitoring network traffic on your
system.  Several security issues have been found in the Ethereal packages
distributed with Red Hat Linux versions 7.2, 7.3, and 8.0

Multiple integer signedness errors in the BGP dissector in Ethereal
0.9.7 and earlier allow remote attackers to cause a denial of service
(infinite loop) via malformed messages.  This problem was discovered by
Silvio Cesare.  CAN-2002-1355

Ethereal 0.9.7 and earlier allows remote attackers to cause a denial
of service (crash) and possibly execute arbitrary code via malformed
packets to the LMP, PPP, or TDS dissectors.  CAN-2002-1356

Users of Ethereal should update to the erratum packages containing Ethereal
version 0.9.8 which is not vulnerable to these issues.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade.  Only those
RPMs which are currently installed will be updated.  Those RPMs which are
not installed but included in the list will not be updated.  Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.

Please note that this update is also available via Red Hat Network.  Many
people find this an easier way to apply updates.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. RPMs required:

Red Hat Linux 7.2:

SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/ethereal-0.9.8-0.72.0.src.rpm

i386:
ftp://updates.redhat.com/7.2/en/os/i386/ethereal-0.9.8-0.72.0.i386.rpm
ftp://updates.redhat.com/7.2/en/os/i386/ethereal-gnome-0.9.8-0.72.0.i386.rpm

ia64:
ftp://updates.redhat.com/7.2/en/os/ia64/ethereal-0.9.8-0.72.0.ia64.rpm
ftp://updates.redhat.com/7.2/en/os/ia64/ethereal-gnome-0.9.8-0.72.0.ia64.rpm

Red Hat Linux 7.3:

SRPMS:
ftp://updates.redhat.com/7.3/en/os/SRPMS/ethereal-0.9.8-0.73.0.src.rpm

i386:
ftp://updates.redhat.com/7.3/en/os/i386/ethereal-0.9.8-0.73.0.i386.rpm
ftp://updates.redhat.com/7.3/en/os/i386/ethereal-gnome-0.9.8-0.73.0.i386.rpm

Red Hat Linux 8.0:

SRPMS:
ftp://updates.redhat.com/8.0/en/os/SRPMS/ethereal-0.9.8-0.80.0.src.rpm

i386:
ftp://updates.redhat.com/8.0/en/os/i386/ethereal-0.9.8-0.80.0.i386.rpm
ftp://updates.redhat.com/8.0/en/os/i386/ethereal-gnome-0.9.8-0.80.0.i386.rpm



6. Verification:

MD5 sum                          Package Name
- --------------------------------------------------------------------------
6b6bcfc3affadcb0c0558664da53d4b7 7.2/en/os/SRPMS/ethereal-0.9.8-0.72.0.src.rpm
775e3dbc6f79e26fef7d627dfff5a203 7.2/en/os/i386/ethereal-0.9.8-0.72.0.i386.rpm
71785e91827125aad64b595065bd4841 7.2/en/os/i386/ethereal-gnome-0.9.8-0.72.0.i386.rpm
e37a1be357ff4ac268979692ddc04efd 7.2/en/os/ia64/ethereal-0.9.8-0.72.0.ia64.rpm
ecd108c5b64e5a0211100d63265b6b75 7.2/en/os/ia64/ethereal-gnome-0.9.8-0.72.0.ia64.rpm
c89bc1dc90f536021c8d13c6a5074ffc 7.3/en/os/SRPMS/ethereal-0.9.8-0.73.0.src.rpm
5b85c350a3e54e81b855af87b2ff8dd5 7.3/en/os/i386/ethereal-0.9.8-0.73.0.i386.rpm
d783a83959b1588f89cb576c82203f4d 7.3/en/os/i386/ethereal-gnome-0.9.8-0.73.0.i386.rpm
0b0a1167e320b2180a7300eb89f81176 8.0/en/os/SRPMS/ethereal-0.9.8-0.80.0.src.rpm
cc5e2bd268c457add3c0514619873c25 8.0/en/os/i386/ethereal-0.9.8-0.80.0.i386.rpm
b7ab974fa760948f98698252aef212d7 8.0/en/os/i386/ethereal-gnome-0.9.8-0.80.0.i386.rpm


These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at http://www.redhat.com/about/contact/pgpkey.html

You can verify each package with the following command:
    
    rpm --checksig -v <filename>

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    
    md5sum <filename>


7. References:

http://www.ethereal.com/appnotes/enpa-sa-00007.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1355
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1356

8. Contact:

The Red Hat security contact is <security@redhat.com>.  More contact
details at http://www.redhat.com/solutions/security/news/contact.html

Copyright 2003 Red Hat, Inc.

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