Hash: SHA256

             AUSCERT External Security Bulletin Redistribution

  Vulnerability in OpenSSL affects IBM Rational ClearCase (CVE-2019-1559)
                               28 June 2019


        AusCERT Security Bulletin Summary

Product:           IBM Rational ClearCase
Publisher:         IBM
Operating System:  AIX
                   Linux variants
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-1559  

Reference:         ASB-2019.0147

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Vulnerability in OpenSSL affects IBM Rational ClearCase (CVE-2019-1559)

Product:             Rational ClearCase
Component:           Perl: ratlperl
Software version:    8.0,.1.20, 8.0,,,,,
           , 8.0.1,,,,,
           ,,,,, 9.0,
Operating system(s): AIX, HP-UX, Linux, Solaris, Windows
Reference #:         0886659

Security Bulletin


An OpenSSL vulnerability was disclosed on February 26, 2019 by the OpenSSL
Project. OpenSSL is used by IBM Rational ClearCase. IBM Rational ClearCase has
addressed the applicable CVE.

Vulnerability Details

CVEID: CVE-2019-1559
Description: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by the failure to immediately close the TCP connection
after the hosts encounter a zero-length record with valid padding. An attacker
could exploit this vulnerability using a 0-byte record padding-oracle attack to
decrypt traffic.
CVSS Base Score: 5.8
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
157514 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N)

Affected Products and Versions

IBM Rational ClearCase versions:

|                Version                 |               Status               |
|         9.0.1 through          |              Affected              |
|          9.0 through           |              Affected              |
|         8.0.1 through         |              Affected              |
|          8.0 through          |              Affected              |

Not all deployments of Rational ClearCase use OpenSSL in a way that is affected
by these vulnerabilities.

You are vulnerable if your use of Rational ClearCase includes any of these

 1. You use the base ClearCase/ClearQuest integration client on any platform,
    configured to use SSL to communicate with a ClearQuest server.
 2. You use the UCM/ClearQuest integration on UNIX/Linux clients, configured to
    use SSL to communicate with a ClearQuest server.
    Note: Windows clients using the UCM/ClearQuest integration are not
 3. On UNIX/Linux clients, you use the Change Management Integration (CMI),
    when configured to use SSL to communicate with the server.
    Note: Windows clients using the CMI integration are not vulnerable.
 4. You use ratlperl, ccperl, or cqperl to run your own perl scripts, and those
    scripts use SSL connections.


Apply a fix pack as listed in the table below. The fix pack includes OpenSSL

| Affected Versions |                    Applying the fix                     |
|   9.0.1 through   |Install Rational ClearCase Fix Pack 7 ( for 9.0.1|
|      |                                                         |
|9.0 through|                                                         |
|   8.0.1 through   |Install Rational ClearCase Fix Pack 21 ( for    |
|      |8.0.1                                                    |
|    8.0 through    |                                                         |
|      |                                                         |

For 8.0.x and earlier releases, IBM recommends upgrading to a fixed, supported
version/release/platform of the product.

Workarounds and Mitigations


Important Note

IBM strongly suggests that all System z customers be subscribed to the System z
Security Portal to receive the latest critical System z security and integrity
service. If you are not subscribed, see the instructions on the System z
Security web site . Security and integrity APARs and associated fixes will be
posted to this portal. IBM suggests reviewing the CVSS scores and applying all
security or integrity fixes as soon as possible to minimize any potential risk.

OpenSSL (publicly disclosed vulnerability)
OpenSSL Project vulnerability website

Change History

20 June 2019: Original version published

                          Cross reference information
 Product   Component   Platform                 Version                 Edition
                      ,,, 9.0.1,
                      ,, 9.0,,
Rational               HP-UX,,,,,
ClearCase Integrations Linux,,,,,
                       Windows  8.0.1,,,,
                      ,, 8.0

- --------------------------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.

NOTE: Third Party Rights
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 follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

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 author's website 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:


Australian Computer Emergency Response Team
The University of Queensland
Qld 4072

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 only.
Comment: http://www.auscert.org.au/render.html?it=1967