Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2002.252 -- RHSA-2002:094-08
Updated tcpdump packages fix buffer overflow
31 May 2002
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: tcpdump
libpcap
arpwatch
Vendor: Red Hat
Operating System: Red Hat Linux 6.2
Red Hat Linux 7.0
Red Hat Linux 7.1
Red Hat Linux 7.2
Platform: Alpha
i386
IA-64
S/390
SPARC
Impact: Denial of Service
Access Required: Remote
- --------------------------BEGIN INCLUDED TEXT--------------------
- ---------------------------------------------------------------------
Red Hat, Inc. Red Hat Security Advisory
Synopsis: Updated tcpdump packages fix buffer overflow
Advisory ID: RHSA-2002:094-08
Issue date: 2002-05-17
Updated on: 2002-05-29
Product: Red Hat Linux
Keywords: tcpdump arpwatch buffer overflow
Cross references:
Obsoletes: RHSA-2001:089-10
CVE Names: CAN-2002-0380
- ---------------------------------------------------------------------
1. Topic:
Updated tcpdump, libpcap, and arpwatch packages are available for Red
Hat Linux 6.2 and 7.x. These updates close a buffer overflow when handling
NFS packets.
2. Relevant releases/architectures:
Red Hat Linux 6.2 - alpha, i386, sparc
Red Hat Linux 7.0 - alpha, i386
Red Hat Linux 7.1 - alpha, i386, ia64
Red Hat Linux 7.2 - i386, ia64, s390
3. Problem description:
tcpdump is a command-line tool for monitoring network traffic. Versions of
tcpdump up to and including 3.6.2 have a buffer overflow that can be
triggered when tracing the network by a bad NFS packet.
We are not yet aware if this issue is fully exploitable; however, users of
tcpdump are advised to upgrade to these errata packages which contain a
patch for this issue.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2002-0380 to this issue. This issue was found by
David Woodhouse of Red Hat.
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. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
55145 - tcpdump segfaults when displaying NFS traffic.
63113 - Start script refers to non/existing /etc/init.d directory
6. RPMs required:
Red Hat Linux 6.2:
SRPMS:
ftp://updates.redhat.com/6.2/en/os/SRPMS/tcpdump-3.6.2-11.6.2.0.src.rpm
alpha:
ftp://updates.redhat.com/6.2/en/os/alpha/tcpdump-3.6.2-11.6.2.0.alpha.rpm
ftp://updates.redhat.com/6.2/en/os/alpha/libpcap-0.6.2-11.6.2.0.alpha.rpm
ftp://updates.redhat.com/6.2/en/os/alpha/arpwatch-2.1a11-11.6.2.0.alpha.rpm
i386:
ftp://updates.redhat.com/6.2/en/os/i386/tcpdump-3.6.2-11.6.2.0.i386.rpm
ftp://updates.redhat.com/6.2/en/os/i386/libpcap-0.6.2-11.6.2.0.i386.rpm
ftp://updates.redhat.com/6.2/en/os/i386/arpwatch-2.1a11-11.6.2.0.i386.rpm
sparc:
ftp://updates.redhat.com/6.2/en/os/sparc/tcpdump-3.6.2-11.6.2.0.sparc.rpm
ftp://updates.redhat.com/6.2/en/os/sparc/libpcap-0.6.2-11.6.2.0.sparc.rpm
ftp://updates.redhat.com/6.2/en/os/sparc/arpwatch-2.1a11-11.6.2.0.sparc.rpm
Red Hat Linux 7.0:
SRPMS:
ftp://updates.redhat.com/7.0/en/os/SRPMS/tcpdump-3.6.2-11.7.0.0.src.rpm
alpha:
ftp://updates.redhat.com/7.0/en/os/alpha/tcpdump-3.6.2-11.7.0.0.alpha.rpm
ftp://updates.redhat.com/7.0/en/os/alpha/libpcap-0.6.2-11.7.0.0.alpha.rpm
ftp://updates.redhat.com/7.0/en/os/alpha/arpwatch-2.1a11-11.7.0.0.alpha.rpm
i386:
ftp://updates.redhat.com/7.0/en/os/i386/tcpdump-3.6.2-11.7.0.0.i386.rpm
ftp://updates.redhat.com/7.0/en/os/i386/libpcap-0.6.2-11.7.0.0.i386.rpm
ftp://updates.redhat.com/7.0/en/os/i386/arpwatch-2.1a11-11.7.0.0.i386.rpm
Red Hat Linux 7.1:
SRPMS:
ftp://updates.redhat.com/7.1/en/os/SRPMS/tcpdump-3.6.2-11.7.1.0.src.rpm
alpha:
ftp://updates.redhat.com/7.1/en/os/alpha/tcpdump-3.6.2-11.7.1.0.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/libpcap-0.6.2-11.7.1.0.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/arpwatch-2.1a11-11.7.1.0.alpha.rpm
i386:
ftp://updates.redhat.com/7.1/en/os/i386/tcpdump-3.6.2-11.7.1.0.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/libpcap-0.6.2-11.7.1.0.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/arpwatch-2.1a11-11.7.1.0.i386.rpm
ia64:
ftp://updates.redhat.com/7.1/en/os/ia64/tcpdump-3.6.2-11.7.1.0.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/libpcap-0.6.2-11.7.1.0.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/arpwatch-2.1a11-11.7.1.0.ia64.rpm
Red Hat Linux 7.2:
SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/tcpdump-3.6.2-11.7.2.0.src.rpm
i386:
ftp://updates.redhat.com/7.2/en/os/i386/tcpdump-3.6.2-11.7.2.0.i386.rpm
ftp://updates.redhat.com/7.2/en/os/i386/libpcap-0.6.2-11.7.2.0.i386.rpm
ftp://updates.redhat.com/7.2/en/os/i386/arpwatch-2.1a11-11.7.2.0.i386.rpm
ia64:
ftp://updates.redhat.com/7.2/en/os/ia64/tcpdump-3.6.2-11.7.2.0.ia64.rpm
ftp://updates.redhat.com/7.2/en/os/ia64/libpcap-0.6.2-11.7.2.0.ia64.rpm
ftp://updates.redhat.com/7.2/en/os/ia64/arpwatch-2.1a11-11.7.2.0.ia64.rpm
7. Verification:
MD5 sum Package Name
- --------------------------------------------------------------------------
d31951e4a06b8c08c1e39abfd0b13955 6.2/en/os/SRPMS/tcpdump-3.6.2-11.6.2.0.src.rpm
b06ccff8c19676918f60bf2708daf1ad 6.2/en/os/alpha/arpwatch-2.1a11-11.6.2.0.alpha.rpm
4da963c19df79272f2f97c219206a04e 6.2/en/os/alpha/libpcap-0.6.2-11.6.2.0.alpha.rpm
bb5ca0570255798bcccf651e4169f45c 6.2/en/os/alpha/tcpdump-3.6.2-11.6.2.0.alpha.rpm
47a2bf8d8534d8e70530d9c394da8f92 6.2/en/os/i386/arpwatch-2.1a11-11.6.2.0.i386.rpm
05b1442e28f961440c4345e5a7f9d4d8 6.2/en/os/i386/libpcap-0.6.2-11.6.2.0.i386.rpm
f617a999adeff7a71b557eef6a6271a9 6.2/en/os/i386/tcpdump-3.6.2-11.6.2.0.i386.rpm
629b18c6f91d21a2b503d05349e331a0 6.2/en/os/sparc/arpwatch-2.1a11-11.6.2.0.sparc.rpm
b0f50ae9d447bbe40c411cc4c66215a3 6.2/en/os/sparc/libpcap-0.6.2-11.6.2.0.sparc.rpm
e9317d5b6b2c473a44c6fed9ec7c25fc 6.2/en/os/sparc/tcpdump-3.6.2-11.6.2.0.sparc.rpm
b1abeb15f7a85fb77827e848737c9949 7.0/en/os/SRPMS/tcpdump-3.6.2-11.7.0.0.src.rpm
75f65e70953953b346359967a89a1980 7.0/en/os/alpha/arpwatch-2.1a11-11.7.0.0.alpha.rpm
3418be3679d89faa81a0732dba448897 7.0/en/os/alpha/libpcap-0.6.2-11.7.0.0.alpha.rpm
659f8cb30777c5022c52a54d96baca54 7.0/en/os/alpha/tcpdump-3.6.2-11.7.0.0.alpha.rpm
098c900c75d194402fade5528b2263ca 7.0/en/os/i386/arpwatch-2.1a11-11.7.0.0.i386.rpm
186da1899fea780a15501354de5d6715 7.0/en/os/i386/libpcap-0.6.2-11.7.0.0.i386.rpm
db064ed0c0b16986b92e97bf2492c945 7.0/en/os/i386/tcpdump-3.6.2-11.7.0.0.i386.rpm
27bf8dea340db81f1e946356c6bef684 7.1/en/os/SRPMS/tcpdump-3.6.2-11.7.1.0.src.rpm
a677cec9114214c2ea5e5b17e709883d 7.1/en/os/alpha/arpwatch-2.1a11-11.7.1.0.alpha.rpm
f7b8cf962abe27d65d628dae5cb992bd 7.1/en/os/alpha/libpcap-0.6.2-11.7.1.0.alpha.rpm
755e2fa9fb0530735e03388f702cfd38 7.1/en/os/alpha/tcpdump-3.6.2-11.7.1.0.alpha.rpm
edc6718ed479661f40c929da92b4e24b 7.1/en/os/i386/arpwatch-2.1a11-11.7.1.0.i386.rpm
4e1a186b4287de4183a7fca4d868906e 7.1/en/os/i386/libpcap-0.6.2-11.7.1.0.i386.rpm
2eb63c329def52d1bcdd88f8b3d01841 7.1/en/os/i386/tcpdump-3.6.2-11.7.1.0.i386.rpm
17319e98b00c707f8c924766f0395aad 7.1/en/os/ia64/arpwatch-2.1a11-11.7.1.0.ia64.rpm
8a214b04f325451eecaf08574ebacc7a 7.1/en/os/ia64/libpcap-0.6.2-11.7.1.0.ia64.rpm
90db41ce76a94d2d10369437704bb934 7.1/en/os/ia64/tcpdump-3.6.2-11.7.1.0.ia64.rpm
1cfcf4efdad9c8d44f9c70a9da8da690 7.2/en/os/SRPMS/tcpdump-3.6.2-11.7.2.0.src.rpm
82f93afd069a3b85ddf5a44daeff589f 7.2/en/os/i386/arpwatch-2.1a11-11.7.2.0.i386.rpm
f26ebb5d1cbb91d4b5effd9174f1728d 7.2/en/os/i386/libpcap-0.6.2-11.7.2.0.i386.rpm
cc168b456fbde106ad1879fe7346c1ee 7.2/en/os/i386/tcpdump-3.6.2-11.7.2.0.i386.rpm
74863a3b3110d2dbb03a03c1ad213152 7.2/en/os/ia64/arpwatch-2.1a11-11.7.2.0.ia64.rpm
876adc0c4d794e75a48e5c6b87fbca45 7.2/en/os/ia64/libpcap-0.6.2-11.7.2.0.ia64.rpm
f7543f13b1734c779cafd600566569b2 7.2/en/os/ia64/tcpdump-3.6.2-11.7.2.0.ia64.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 <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:
rpm --checksig --nogpg <filename>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0380
Copyright(c) 2000, 2001, 2002 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 original authors 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/Information/advisories.html
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.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key
iQCVAwUBPPdi2yh9+71yA2DNAQFnbwP/TVqDGNuJRNy4wXomWAL8R9whaJAmyG0w
ZbyTzpwwcLKwz/6KshInQEtmg9Xl/RhvVmllh+KFS0DDcbkiXSuLNSa7lpxTnFhY
rjx2UI+Ob4pFh7RqkIHKNxO4eWfk3E9SG9nZ5jgjs+sJQ83XkyLYfOZmfvdBX9N3
n8kwP4yTZIk=
=hLv0
-----END PGP SIGNATURE-----