Security Bulletin
Summary
There is a vulnerability in the IBM® Runtime Environment Java™ Versions 7 and 8, which are used by IBM Rational ClearCase. This issue was disclosed as part of the IBM Java SDK updates in January 2020 (deferred from Oracle Jan 2020 CPU).
Vulnerability Details
CVEID: CVE-2020-2654
DESCRIPTION: An unspecified vulnerability in Java SE related to the Java SE Libraries component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/174601 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
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
| Affected Product(s) | Version(s) |
| IBM Rational ClearCase | 9.0 |
| IBM Rational ClearCase | 9.0.1 |
| IBM Rational ClearCase | 9.0.2 |
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
|
Affected Versions
|
Applying the fix
|
|
9.0.2 through 9.0.2.1
| Install Rational ClearCase Fix Pack 2 (9.0.2.2) for 9.0.2 |
|
9.0.1 through 9.0.1.9
9.0 through 9.0.0.6 | Install Rational ClearCase Fix Pack 10 (9.0.1.10) 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 fix for CVE-2020-2654 is on a delayed cycle. Therefore, HPUX is still vulnerable to this CVE.
- The Solaris 32bit (x86 and sparc) Java fix for CVE-2020-2654 is available from IBM as Java 7.0.10.65 but is not yet packaged for installation by the ClearCase Installation Manager. Therefore, Solaris 32bit is still vulnerable to this CVE.
- 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. |
- 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.
- Review the following WAS security bulletin:
Security Bulletin: Multiple Vulnerabilities in IBM® Java SDK affect WebSphere Application Server April 2020 CPU plus deferred CVE-2019-2949 and CVE-2020-2654
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.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
25 Jun 2020: Initial Publication
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
25 June 2020
UID
ibm16235912