HP Support Information Digests

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===============================================================================


Digest Name: daily HP Secure OS Software for Linux security bulletins digest
    Created: Thu Sep 5 3:00:03 PDT 2002

Table of Contents:

Document ID Title
--------------- -----------
HPSBTL0209-066 Security vulnerability in PXE package

The documents are listed below.
-------------------------------------------------------------------------------


Document ID: HPSBTL0209-066
Date Loaded: 20020903
      Title: Security vulnerability in PXE package

TEXT

---------------------------------------------------------------
    HEWLETT-PACKARD COMPANY SECURITY ADVISORY: HPSBTL0209-066
    Originally issued: 03 Sep 2002
---------------------------------------------------------------

The information in the following Security Advisory should be acted
upon as soon as possible. Hewlett-Packard Company will not be
liable for any consequences to any customer resulting from the
customer's failure to fully implement instructions in this Security
Advisory as soon as possible.

Because the vulnerability does not require a Hewlett-Packard Secure OS
1.0 patch or re-packaging of the RPM affected by the advisory, the
RPMs have not been produced or tested by Hewlett-Packard.

---------------------------------------------------------------
PROBLEM: Security vulnerability in PXE package

PLATFORM: Any system running HP Secure OS Software for Linux Release 1.0

DAMAGE: Potential for denial of service.

SOLUTION: Apply the appropriate RPMs (see section B below)

MANUAL ACTIONS: None

AVAILABILITY: The RPMs are available now.
 ---------------------------------------------------------------
 A. Background

    The PXE package contains the PXE (Preboot eXecution Environment)
    server and code needed for Linux to boot from a boot disk image on a
    Linux PXE server. PXE is not included in the default installation of
    HP Secure OS Software for Linux Release 1.0.

    Updated PXE packages are now available which fix a vulnerability
    that can cause the PXE server to crash.

 B. Fixing the problem

    Hewlett-Packard Company recommends that customers who have installed
    PXE download the RPMs listed in the following Red Hat Security
    Advisory in the section labeled "Red Hat Linux 7.1 i386".

    2002-08-30 RHSA-2002:162 PXE server crashes from certain DHCP packets

    http://rhn.redhat.com/errata/RHSA-2002-162.html

    To install the security advisory RPMs, use the following sequence
    of commands:

    1. If you use the tripwire product, we recommend that you run a
       a consistency check and fix any violations before installing
       the security advisory RPM.

           tripwire --check --interactive

    2. Install the advisory RPM from the root account.

           rpm -F <advisory RPM name>

    3. Update the tripwire database

           tripwire --check --interactive

    NOTE:
    The rpm -q <package name> command can be used to determine if the
    package is installed. Hewlett-Packard recommends applying the
    security advisory fixes to installed packages only. The -F option
    to the RPM installer will only apply the fix if the package is
    currently installed on the system. Dependent RPMs can be found by
    using the "Find Latest RPMs" search facility at
    http://www.redhat.com/apps/download. To find the latest dependent
    RPM enter the RPM's name in the "By Keyword" box.

 C. To subscribe to automatically receive future HP Security
    Bulletins from the HP IT Resource Center via electronic
    mail, do the following:

    Use your browser to access the HP IT Resource Center page
    at:

       http://itrc.hp.com

    Use the 'Login' tab at the left side of the screen to login
    using your ID and password. Use your existing login or the
    "Register" button at the left to create a login. Remember to
    save the User ID assigned to you, and your password. This
    login provides access to many useful areas of the ITRC.

    In the left most frame select "Maintenance and Support".

    Under the "Notifications" section (near the bottom of
    the page), select "Support Information Digests".

    To -subscribe- to future HP Security Bulletins or other
    Technical Digests, click the check box (in the left column)
    for the appropriate digest and then click the "Update
    Subscriptions" button at the bottom of the page.

    or

    To -review- bulletins already released, select the link
    (in the middle column) for the appropriate digest.

 D. To report new security vulnerabilities, send email to

    security-alerthp.com

    Please encrypt any exploit information using the
    security-alert PGP key, available from your local key
    server. You may also get the security-alert PGP key by
    sending a message with a -subject- (not body) of
    'get key' (no quotes) to security-alerthp.com.

    Permission is granted for copying and circulating this
    advisory to Hewlett-Packard (HP)customers (or the Internet
    community) for the purpose of alerting them to problems,
    if and only if, the advisory is not edited or changed in
    any way, is attributed to HP, and provided such reproduction
    and/or distribution is performed for non-commercial purposes.

    Any other use of this information is prohibited. HP is not
    liable for any misuse of this information by any third party.
---------------------------------------------------------------
-----End of Document ID: HPSBTL0209-066--------------------------------------

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