[RHSA-2004:007-01] Updated tcpdump packages fix various vulnerabilities

bugzilla_at_redhat.com
Date: 01/14/04

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    Date: Wed, 14 Jan 2004 14:44 -0500
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                       Red Hat Security Advisory

    Synopsis: Updated tcpdump packages fix various vulnerabilities
    Advisory ID: RHSA-2004:007-01
    Issue date: 2004-01-07
    Updated on: 2004-01-14
    Product: Red Hat Linux
    Keywords: tcpdump arpwatch buffer overflow
    Cross references:
    Obsoletes: RHSA-2003:174
    CVE Names: CAN-2003-0989
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    1. Topic:

    Updated tcpdump, libpcap, and arpwatch packages fix a number of
    vulnerabilities in ISAKMP parsing.

    2. Relevant releases/architectures:

    Red Hat Linux 9 - i386

    3. Problem description:

    Tcpdump is a command-line tool for monitoring network traffic.

    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 two additional flaws in the ISAKMP decoding
    routines of tcpdump versions up to and including 3.8.1.

    Remote attackers could potentially exploit these issues by sending
    carefully-crafted packets to a victim. If the victim uses tcpdump, these
    pakets could result in a denial of service, or possibly execute arbitrary
    code as the 'pcap' user.

    Users of tcpdump are advised to upgrade to these erratum packages, which
    contain backported security patches and are 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 9:

    SRPMS:
    ftp://updates.redhat.com/9/en/os/SRPMS/tcpdump-3.7.2-7.9.1.src.rpm

    i386:
    ftp://updates.redhat.com/9/en/os/i386/arpwatch-2.1a11-7.9.1.i386.rpm
    ftp://updates.redhat.com/9/en/os/i386/libpcap-0.7.2-7.9.1.i386.rpm
    ftp://updates.redhat.com/9/en/os/i386/tcpdump-3.7.2-7.9.1.i386.rpm

    6. Verification:

    MD5 sum Package Name
    - --------------------------------------------------------------------------

    226b13743f96ea03b3c3a17e74114b1b 9/en/os/SRPMS/tcpdump-3.7.2-7.9.1.src.rpm
    fe3af157c00676c7021f793a5afd1f62 9/en/os/i386/arpwatch-2.1a11-7.9.1.i386.rpm
    384fee9a20392740cf83cced8eb41a3c 9/en/os/i386/libpcap-0.7.2-7.9.1.i386.rpm
    c5eb264f2f18ddffd07e700d752c63ba 9/en/os/i386/tcpdump-3.7.2-7.9.1.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://marc.theaimsgroup.com/?l=tcpdump-workrs&m=107325073018070
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0989

    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.
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