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Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM Rational ClearCase

Security Bulletin


Summary

There are multiple vulnerabilities in IBM® Runtime Environment Java™ Versions 7 and 8, which are used by IBM Rational ClearCase. These issues were disclosed as part of the IBM Java SDK updates in October 2019 and January 2020.

Vulnerability Details

CVEID:   CVE-2019-2989

DESCRIPTION:   An unspecified vulnerability in Java SE could allow an unauthenticated attacker to cause no confidentiality impact, high integrity impact, and no availability impact.
CVSS Base score: 6.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/169295 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N)

CVEID:   CVE-2020-2593
DESCRIPTION:   An unspecified vulnerability in Java SE related to the Java SE Networking component could allow an unauthenticated attacker to cause low confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/174541 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID:   CVE-2019-4732
DESCRIPTION:   IBM SDK, Java Technology Edition Version could allow a local authenticated attacker to execute arbitrary code on the system, caused by DLL search order hijacking vulnerability in Microsoft Windows client. By placing a specially-crafted file in a compromised folder, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172618 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H)

Affected Products and Versions

IBM Rational ClearCase version 9 in the following components:

  • CCRC WAN server/CM Server component, when configured to use SSL
  • ClearCase remote client: CCRC/CTE GUI, rcleartool, and CMAPI clients
ClearCase version
Status
9.0.2
Affected
9.0.1 through 9.0.1.8
Affected
9.0 through 9.0.0.6
Affected

Remediation/Fixes

The solution is to install a fix that includes an updated Java™ Virtual Machine with fixes for the issues, and to apply fixes for WebSphere Application Server (WAS).

Client and server fixes

Apply the relevant fixes as listed in the table below.
Affected Versions
Applying the fix
9.0.2
Install Rational ClearCase Fix Pack 1 (9.0.2.1) for 9.0.2
9.0.1 through 9.0.1.8
9.0 through 9.0.0.6
Install Rational ClearCase Fix Pack 9 (9.0.1.9) for 9.0.1

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

Notes:
  • The HPUX Java fixes for CVE-2019-4732 and CVE-2020-2593 are on a delayed cycle. Therefore, HPUX is still vulnerable to those 2 CVEs.
  • If you use CCRC as an extension offering installed into an Eclipse shell (one not provided as part of a ClearCase release), or you use rcleartool or CMAPI using a Java™ Virtual Machine not supplied by IBM as part of Rational ClearCase, you should update the Java™ Virtual Machine that you use to include a fix for the above issues. Contact the supplier of your Java™ Virtual Machine and/or the supplier of your Eclipse shell.

CCRC WAN server fixes

Affected Versions
Applying the fix
9.0.0.x
9.0.1.x
Apply the appropriate WebSphere Application Server fix directly to your CCRC WAN server host. No ClearCase-specific steps are necessary.
  1. Determine the WAS version used by your CCRC WAN server. Navigate to the CCRC profile directory (either the profile you specified when installing ClearCase, or <ccase-home>/common/ccrcprofile), then execute the script: bin/versionInfo.sh (UNIX) or bin\versionInfo.bat (Windows). The output includes a section "IBM WebSphere Application Server". Make note of the version listed in this section.
  2. Review the following WAS security bulletin:
    Security Bulletin: Multiple Vulnerabilities in IBM® Java SDK affect WebSphere Application Server January 2020 CPU
    and apply the latest available fix for the version of WAS used for CCRC WAN server.

Note: there may be newer security fixes for WebSphere Application Server. Follow the link below (in the section "Get Notified about Future Security Bulletins") to subscribe to WebSphere product support alerts for additional Java SDK fixes.

Get Notified about Future Security Bulletins

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.

References

Off

Change History

27 March 2020: First published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

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Document Information

Modified date:
27 March 2020

UID

ibm13260187