Red Hat Linux Advisory: Ethereal

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Red Hat Security Advisory

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1. Topic:

Updated Ethereal packages that fix a number of exploitable
security issues are now available.

2. Relevant releases/architectures:

Red Hat Linux 7.2 – i386, ia64
Red Hat Linux 7.3 – i386
Red Hat Linux 8.0 – i386
Red Hat Linux 9 – i386

3. Problem description:

Ethereal is a program for monitoring network traffic.

A number of security issues affect Ethereal. By exploiting these
issues, it may be possible to make Ethereal crash or run arbitrary
code by injecting a purposefully-malformed packet onto the wire or
by convincing someone to read a malformed packet trace file.

A buffer overflow in Ethereal 0.9.15 and earlier allows remote
attackers to cause a denial of service and possibly execute
arbitrary code via a malformed GTP MSISDN string. The Common
Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name
CAN-2003-0925 to this issue.

Ethereal 0.9.15 and earlier allows remote attackers to cause a
denial of service (crash) via certain malformed ISAKMP or MEGACO
packets. The Common Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name
CAN-2003-0926 to this issue.

A heap-based buffer overflow in Ethereal 0.9.15 and earlier
allows remote attackers to cause a denial of service (crash) and
possibly execute arbitrary code via the SOCKS dissector. The Common
Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name
CAN-2003-0927 to this issue.

Users of Ethereal should update to these erratum packages
containing Ethereal version 0.9.16, 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.

Please note that this update is available via Red Hat Network.
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-0.9.16-0.72.1.src.rpm

i386:

ftp://updates.redhat.com/7.2/en/os/i386/ethereal-0.9.16-0.72.1.i386.rpm

ftp://updates.redhat.com/7.2/en/os/i386/ethereal-gnome-0.9.16-0.72.1.i386.rpm

ia64:

ftp://updates.redhat.com/7.2/en/os/ia64/ethereal-0.9.16-0.72.1.ia64.rpm

ftp://updates.redhat.com/7.2/en/os/ia64/ethereal-gnome-0.9.16-0.72.1.ia64.rpm

Red Hat Linux 7.3:

SRPMS:

ftp://updates.redhat.com/7.3/en/os/SRPMS/ethereal-0.9.16-0.73.1.src.rpm

i386:

ftp://updates.redhat.com/7.3/en/os/i386/ethereal-0.9.16-0.73.1.i386.rpm

ftp://updates.redhat.com/7.3/en/os/i386/ethereal-gnome-0.9.16-0.73.1.i386.rpm

Red Hat Linux 8.0:

SRPMS:

ftp://updates.redhat.com/8.0/en/os/SRPMS/ethereal-0.9.16-0.80.1.src.rpm

i386:

ftp://updates.redhat.com/8.0/en/os/i386/ethereal-0.9.16-0.80.1.i386.rpm

ftp://updates.redhat.com/8.0/en/os/i386/ethereal-gnome-0.9.16-0.80.1.i386.rpm

Red Hat Linux 9:

SRPMS:

ftp://updates.redhat.com/9/en/os/SRPMS/ethereal-0.9.16-0.90.1.src.rpm

i386:

ftp://updates.redhat.com/9/en/os/i386/ethereal-0.9.16-0.90.1.i386.rpm

ftp://updates.redhat.com/9/en/os/i386/ethereal-gnome-0.9.16-0.90.1.i386.rpm

6. Verification:

MD5 sum Package Name

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51b11630b7e941a445b9e5b3c78bad71
7.2/en/os/SRPMS/ethereal-0.9.16-0.72.1.src.rpm
d82608ed91c6eedf65727684c6db5305
7.2/en/os/i386/ethereal-0.9.16-0.72.1.i386.rpm
4f77f1ff00345c5ac17fab320d266623
7.2/en/os/i386/ethereal-gnome-0.9.16-0.72.1.i386.rpm
6dd40a5f31ab113ba0e0165f8c1a50e4
7.2/en/os/ia64/ethereal-0.9.16-0.72.1.ia64.rpm
d7b8d27500bdb6a81b1b2040c994299a
7.2/en/os/ia64/ethereal-gnome-0.9.16-0.72.1.ia64.rpm
1851780c3ca9c4b41154fde464f7baa5
7.3/en/os/SRPMS/ethereal-0.9.16-0.73.1.src.rpm
3606cb008369c2d23de53e595c1e4a3b
7.3/en/os/i386/ethereal-0.9.16-0.73.1.i386.rpm
8db80d03f546cf633ff2346e57ff4492
7.3/en/os/i386/ethereal-gnome-0.9.16-0.73.1.i386.rpm
ea4799792230ece8074d766371e377f5
8.0/en/os/SRPMS/ethereal-0.9.16-0.80.1.src.rpm
3f794942c054cc80e211e235d2bd80a6
8.0/en/os/i386/ethereal-0.9.16-0.80.1.i386.rpm
eb651ff758ac8e58e5edbac838930df8
8.0/en/os/i386/ethereal-gnome-0.9.16-0.80.1.i386.rpm
45868a8ab244bee8b26454bd64c8894c
9/en/os/SRPMS/ethereal-0.9.16-0.90.1.src.rpm
b0397b5f2745d05ebc9775bcf46ae26f
9/en/os/i386/ethereal-0.9.16-0.90.1.i386.rpm
f29f45d6e0c2f5eba2fb524df3ead36d
9/en/os/i386/ethereal-gnome-0.9.16-0.90.1.i386.rpm

These packages are GPG signed by Red Hat for security. Our key
is available from https://www.redhat.com/security/keys.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-00011.html

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0925

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0926

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0927

8. Contact:

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

Copyright 2003 Red Hat, Inc.