Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2003.0365 -- RHSA-2003:174-01
Updated tcpdump packages fix privilege dropping error
19 May 2003
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: tcpdump
Publisher: Red Hat
Operating System: Red Hat Linux 9
Red Hat Linux 8.0
Red Hat Linux 7.2
Red Hat Linux 7.2
Red Hat Linux 7.1
Linux
Impact: Increased Privileges
Reduced Security
Access Required: Remote
CVE Names: CAN-2003-0194
- --------------------------BEGIN INCLUDED TEXT--------------------
- ---------------------------------------------------------------------
Red Hat Security Advisory
Synopsis: Updated tcpdump packages fix privilege dropping error
Advisory ID: RHSA-2003:174-01
Issue date: 2003-05-15
Updated on: 2003-05-15
Product: Red Hat Linux
Keywords: tcpdump
Cross references:
Obsoletes: RHSA-2003:032-
CVE Names: CAN-2003-0194
- ---------------------------------------------------------------------
1. Topic:
Updated tcpdump packages that correctly drop privileges on startup are now
available.
2. Relevant releases/architectures:
Red Hat Linux 7.1 - i386
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:
Tcpdump is a command-line tool for monitoring network traffic.
The Red Hat tcpdump packages advertise that by default tcpdump will drop
permissions to user 'pcap'. Due to a compilation error this did not
happen, and tcpdump would run as root unless the '-U' flag was specified.
Users of tcpdump are advised to upgrade to these errata packages, which
contain are compiled so that by default tcpdump will drop privileges to the
'pcap' user.
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. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
88881 - CAN-2003-0145 RADUIS tcpdump vulnerability
90208 - CAN-2003-0194 tcpdump didn't drop root to pcap user like promised
6. RPMs required:
Red Hat Linux 7.1:
SRPMS:
ftp://updates.redhat.com/7.1/en/os/SRPMS/tcpdump-3.6.3-17.7.1.3.src.rpm
i386:
ftp://updates.redhat.com/7.1/en/os/i386/tcpdump-3.6.3-17.7.1.3.i386.rpm
Red Hat Linux 7.2:
SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/tcpdump-3.6.3-17.7.2.3.src.rpm
i386:
ftp://updates.redhat.com/7.2/en/os/i386/tcpdump-3.6.3-17.7.2.3.i386.rpm
ia64:
ftp://updates.redhat.com/7.2/en/os/ia64/tcpdump-3.6.3-17.7.2.3.ia64.rpm
Red Hat Linux 7.3:
SRPMS:
ftp://updates.redhat.com/7.3/en/os/SRPMS/tcpdump-3.6.3-17.7.3.3.src.rpm
i386:
ftp://updates.redhat.com/7.3/en/os/i386/tcpdump-3.6.3-17.7.3.3.i386.rpm
Red Hat Linux 8.0:
SRPMS:
ftp://updates.redhat.com/8.0/en/os/SRPMS/tcpdump-3.6.3-17.8.0.3.src.rpm
i386:
ftp://updates.redhat.com/8.0/en/os/i386/tcpdump-3.6.3-17.8.0.3.i386.rpm
Red Hat Linux 9:
SRPMS:
ftp://updates.redhat.com/9/en/os/SRPMS/tcpdump-3.7.2-1.9.1.src.rpm
i386:
ftp://updates.redhat.com/9/en/os/i386/tcpdump-3.7.2-1.9.1.i386.rpm
7. Verification:
MD5 sum Package Name
- --------------------------------------------------------------------------
fac820eb58d79fc58d30bff1fd11f33d 7.1/en/os/SRPMS/tcpdump-3.6.3-17.7.1.3.src.rpm
3eadddac8cdf6ae0b14e8016f651e1f0 7.1/en/os/i386/tcpdump-3.6.3-17.7.1.3.i386.rpm
5f5c14bd0dfdaa5b0d5dbc0fb70da395 7.2/en/os/SRPMS/tcpdump-3.6.3-17.7.2.3.src.rpm
c48e86db37c7f767ec8931ebb54fc0ae 7.2/en/os/i386/tcpdump-3.6.3-17.7.2.3.i386.rpm
39da71bfef8520c979db8cf21c4f6781 7.2/en/os/ia64/tcpdump-3.6.3-17.7.2.3.ia64.rpm
f9de6824ac351207bd105978eefed89d 7.3/en/os/SRPMS/tcpdump-3.6.3-17.7.3.3.src.rpm
8d54631bf99d61090f0752f29ef51f8f 7.3/en/os/i386/tcpdump-3.6.3-17.7.3.3.i386.rpm
67a36a50ec50a8aa2d32b2462fae653d 8.0/en/os/SRPMS/tcpdump-3.6.3-17.8.0.3.src.rpm
afba9bea894090b9c179979403347629 8.0/en/os/i386/tcpdump-3.6.3-17.8.0.3.i386.rpm
1b1b577c9ebfe84f735a6498140e1e7f 9/en/os/SRPMS/tcpdump-3.7.2-1.9.1.src.rpm
6cff8bf6b2425c361eec70ba3017d82b 9/en/os/i386/tcpdump-3.7.2-1.9.1.i386.rpm
These packages are GPG signed by Red Hat for security. Our key is
available at http://www.redhat.com/solutions/security/news/publickey/
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>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0194
9. Contact:
The Red Hat security contact is <security@redhat.com>. More contact
details at http://www.redhat.com/solutions/security/news/contact/
Copyright 2003 Red Hat, Inc.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business
hours which are GMT+10:00 (AEST). On call after hours
for member emergencies only.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: http://www.auscert.org.au/render.html?it=1967
iQCVAwUBPskItih9+71yA2DNAQELbwP9EaxUV63m+DpiFObAIKjV/vJawkrRimFV
jwfU7/7qMuNAlR00glXdmGzykLIv7UjrpjB4IrH0Gt34s3W1ST0vqK6zx2WZgGE2
uNycYqfcUlHJiLhy56HMaJ/Bfu7mc7uZ+ySi9jlivdgkyvl100jef8lfv8aTfYbA
ZxuPbX+kpjM=
=Jq9D
-----END PGP SIGNATURE-----