Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM Rational ClearCase (CVE-2018-12547, CVE-2018-1890)

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 March 2019.

Vulnerability Details

CVEID: CVE-2018-1890 DESCRIPTION: IBM SDK, Java Technology Edition Version 8 on the AIX platform uses absolute RPATHs which may facilitate code injection and privilege elevation by local users.
CVSS Base Score: 5.6
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/152081&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L)

CVEID: CVE-2018-12547 DESCRIPTION: Eclipse OpenJ9 is vulnerable to a buffer overflow, caused by improper bounds checking by the jio_snprintf() and jio_vsnprintf() functions. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 9.8
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/157512&gt; for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/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

—|—
9.0.1.7 on linux_x86 (32-bit) | Affected

9.0.1 through 9.0.1.6

|

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

—|—
9.0.1.7 on linux_x86 (32-bit) | Install Rational ClearCase Fix Pack 8 (9.0.1.8) for 9.0.1

9.0.1 through 9.0.1.6
9.0 through 9.0.0.6

| Install Rational ClearCase Fix Pack 7 (9.0.1.7) for 9.0.1

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

Note:

• 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 affects WebSphere Application Server January 2019 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 "