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Fedora Legacy Update Advisory
Synopsis: Updated tcpdump resolves security vulnerability
Advisory ID: FLSA:1222
Issue date: 2004-01-31
Product: Red Hat Linux
Keywords: Security
Cross references: https://bugzilla.fedora.us/show_bug.cgi?id=1222
CVE Names:
CAN-2003-0989,
CAN-2004-0055,
CAN-2004-0057
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1. Topic:
Updated tcpdump packages are now available that fix multiple security
vulnerabilities which may allow remote attackers to exploit these issues
by sending carefully-crafted packets to a victim. If the victim uses
tcpdump, these packets could result in a denial of service, or possibly
execute arbitrary code as the 'pcap' user.
2. Relevant releases/architectures:
Red Hat Linux 7.2 - i386
Red Hat Linux 7.3 - i386
Red Hat Linux 8.0 - i386
3. Problem description:
Tcpdump is a command-line tool for monitoring network traffic. Tcpdump can
capture and display the packet headers on a particular network interface
or on all interfaces. Tcpdump can display all of the packet headers, or
just the ones that match particular criteria.
George Bakos discovered flaws in the ISAKMP decoding routines of tcpdump
versions prior to 3.8.1. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name
CAN-2003-0989 to this issue.
Jonathan Heusser discovered an additional flaw in the ISAKMP decoding
routines for tcpdump 3.8.1 and earlier. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name
CAN-2004-0057 to
this issue.
Jonathan Heusser discovered a flaw in the print_attr_string function in the
RADIUS decoding routines for tcpdump 3.8.1 and earlier. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name
CAN-2004-0055 to this issue.
Users of tcpdump should update to these update packages, which contain a
backported security patch that corrects this issue.
Fedora Legacy would like to thank George Bakos and Jonathan Heusser for
discovering and disclosing these issues, as well as Christian Pearce for
providing a backported fix for Red Hat Linux 7.2, 7.3, and 8.0.
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 yum and apt. Many
people find this an easier way to apply updates. To use yum issue:
yum update
or to use apt:
apt-get update; apt-get upgrade
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system. This assumes that you have yum or
apt-get configured for obtaining Fedora Legacy content. Please visit
http://www.fedoralegacy.org/download for directions on how to configure
yum and apt-get.
5. Bug IDs fixed:
http://bugzilla.fedora.us - 1222 - tcpdump security fix in rh7x, rh80
6. RPMs required:
Red Hat Linux 7.2:
SRPMS:
http://download.fedoralegacy.org/redhat/7.2/updates/SRPMS/tcpdump-3.6.3-17.7.2.4.legacy.src.rpm
i386:
http://download.fedoralegacy.org/redhat/7.2/updates/i386/tcpdump-3.6.3-17.7.2.4.legacy.i386.rpm
http://download.fedoralegacy.org/redhat/7.2/updates/i386/libpcap-0.6.2-17.7.2.4.legacy.i386.rpm
http://download.fedoralegacy.org/redhat/7.2/updates/i386/arpwatch-2.1a11-17.7.2.4.legacy.i386.rpm
Red Hat Linux 7.3:
SRPMS:
http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/tcpdump-3.6.3-17.7.3.4.legacy.src.rpm
i386:
http://download.fedoralegacy.org/redhat/7.3/updates/i386/tcpdump-3.6.3-17.7.3.4.legacy.i386.rpm
http://download.fedoralegacy.org/redhat/7.3/updates/i386/libpcap-0.6.2-17.7.3.4.legacy.i386.rpm
http://download.fedoralegacy.org/redhat/7.3/updates/i386/arpwatch-2.1a11-17.7.3.4.legacy.i386.rpm
Red Hat Linux 8.0:
SRPMS:
http://download.fedoralegacy.org/redhat/8.0/updates/SRPMS/tcpdump-3.6.3-17.8.0.5.legacy.src.rpm
i386:
http://download.fedoralegacy.org/redhat/8.0/updates/i386/tcpdump-3.6.3-17.8.0.5.legacy.i386.rpm
http://download.fedoralegacy.org/redhat/8.0/updates/i386/libpcap-0.6.2-17.8.0.5.legacy.i386.rpm
http://download.fedoralegacy.org/redhat/8.0/updates/i386/arpwatch-2.1a11-17.8.0.5.legacy.i386.rpm
7. Verification:
SHA1 sum Package Name
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a10c0d99cd919f459a25fdb5562d6907667b33d3
7.2/updates-testing/SRPMS/tcpdump-3.6.3-17.7.2.4.legacy.src.rpm
e3777ee05d6b57a81fa08a96b64aa45a0758e42f
7.2/updates-testing/i386/tcpdump-3.6.3-17.7.2.4.legacy.i386.rpm
795dd99495f288aacea6a8775e9aba8eb801e570
7.2/updates-testing/i386/libpcap-0.6.2-17.7.2.4.legacy.i386.rpm
8e860cb231b7dd59345c2f82531d527ca78090b5
7.2/updates-testing/i386/arpwatch-2.1a11-17.7.2.4.legacy.i386.rpm
3b7cb6c9f62c259e2c24d056263281a44a5ce406
7.3/updates-testing/SRPMS/tcpdump-3.6.3-17.7.3.4.legacy.src.rpm
cc1f3f75f7eb32a1ea2aa224cbae64190e5dcaf5
7.3/updates-testing/i386/tcpdump-3.6.3-17.7.3.4.legacy.i386.rpm
5aeb410a107e4b82d0f62c6f8931d20998a8e1de
7.3/updates-testing/i386/libpcap-0.6.2-17.7.3.4.legacy.i386.rpm
7fbb66ee934dcb388489c94551c56ac74c3d0540
7.3/updates-testing/i386/arpwatch-2.1a11-17.7.3.4.legacy.i386.rpm
c9e455ef10ea70f69e269f6d71c3ded700424ca1
8.0/updates-testing/SRPMS/tcpdump-3.6.3-17.8.0.5.legacy.src.rpm
cbb7cd725a50be1cbdbc8ee75a357229e847afac
8.0/updates-testing/i386/tcpdump-3.6.3-17.8.0.5.legacy.i386.rpm
643931721424765748895f57f4ca53dba896378c
8.0/updates-testing/i386/libpcap-0.6.2-17.8.0.5.legacy.i386.rpm
1f9aacbd480af1a754adc9d6190ddc06d2b491ab
8.0/updates-testing/i386/arpwatch-2.1a11-17.8.0.5.legacy.i386.rpm
These packages are GPG signed by Fedora Legacy for security. Our key is
available from
http://www.fedoralegacy.org/about/security.php
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 sha1sum with the following command:
sha1sum <filename>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=
CAN-2003-0989
http://cve.mitre.org/cgi-bin/cvename.cgi?name=
CAN-2004-0055
http://cve.mitre.org/cgi-bin/cvename.cgi?name=
CAN-2004-0057
http://marc.theaimsgroup.com/?l=tcpdump-workers&m=107325073018070&w=2
https://bugzilla.fedora.us/show_bug.cgi?id=1222
9. Contact:
The Fedora Legacy security contact is <secnotice@fedoralegacy.org>. More
project details at
http://www.fedoralegacy.org
