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             AUSCERT External Security Bulletin Redistribution

                     ESB-2004.0412 -- RHSA-2004:244-01
                Updated Tripwire packages fix security flaw
                               16 June 2004

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                Tripwire
Publisher:              Red Hat
Operating System:       Red Hat Enterprise Linux AS (Advanced Server)
                        version 2.1
                        Red Hat Enterprise Linux ES version 2.1
                        Red Hat Enterprise Linux WS version 2.1
                        Linux variants
                        UNIX variants
Impact:                 Increased Privileges
Access Required:        Existing Account
CVE Names:              CAN-2004-0536

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                   Red Hat Security Advisory

Synopsis:          Updated Tripwire packages fix security flaw
Advisory ID:       RHSA-2004:244-01
Issue date:        2004-06-14
Updated on:        2004-06-14
Product:           Red Hat Enterprise Linux
Keywords:          
Cross references:  
Obsoletes:         
CVE Names:         CAN-2004-0536
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1. Topic:

Updated Tripwire packages that fix a format string security vulnerability
are now available.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386

3. Problem description:

Tripwire is a system integrity assessment tool.

Paul Herman discovered a format string vulnerability in Tripwire version
2.3.1 and earlier.  If Tripwire is configured to send reports via email, a
local user could gain privileges by creating a carefully crafted file.  The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0536 to this issue.

Users of Tripwire are advised to upgrade to this erratum package which
contains a backported security patch to correct this issue.  The erratum
package also contains some minor bug fixes.

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.

If up2date fails to connect to Red Hat Network due to SSL
Certificate Errors, you need to install a version of the
up2date client with an updated certificate.  The latest version of
up2date is available from the Red Hat FTP site and may also be
downloaded directly from the RHN website:

https://rhn.redhat.com/help/latest-up2date.pxt

5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):

70502 - Old File Checks in sample policy configuration file
72259 - Missing policyguide.txt in tripwire RPM
125176 - CAN-2004-0536 tripwire privilege escalation flaw

6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/tripwire-2.3.1-18.src.rpm

i386:
Available from Red Hat Network: tripwire-2.3.1-18.i386.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/tripwire-2.3.1-18.src.rpm

i386:
Available from Red Hat Network: tripwire-2.3.1-18.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/tripwire-2.3.1-18.src.rpm

i386:
Available from Red Hat Network: tripwire-2.3.1-18.i386.rpm



7. Verification:

MD5 sum                          Package Name
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ab6af85788d25ae312cbec3a768be2c8 tripwire-2.3.1-18.i386.rpm
b5eae5cd1780f649cc9cd5d123d4bb5c tripwire-2.3.1-18.src.rpm


These packages are GPG signed by Red Hat for security.  Our key is
available from https://www.redhat.com/security/team/key.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>


8. References:

http://marc.theaimsgroup.com/?l=bugtraq&m=108627481507249
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0536

9. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact.html

Copyright 2004 Red Hat, Inc.
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