Security Bulletin: Due to use of IBM SDK, Java Technology Edition, IBM Tivoli Application Dependency Discovery Manager (TADDM) is vulnerable to denial of service

Summary

IBM® SDK Java™ Technology Edition, is used by IBM Tivoli Application Dependency Discovery Manager (TADDM) and is vulnerable to a denial of service (CVE-2021-35550, CVE-35603).

Vulnerability Details

CVEID:CVE-2021-35550
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the JSSE component could allow an unauthenticated attacker to obtain sensitive information resulting in a high confidentiality impact using unknown attack vectors.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/211627 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2021-35603
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the JSSE component could allow an unauthenticated attacker to obtain sensitive information resulting in a low confidentiality impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/211676 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

In order to fix this vulnerability, java is to be upgraded to 8.0.7.5 for TADDM versions 7.3.0.5 - 7.3.0.9 or to 7.0.11.5 for TADDM versions 7.3.0.3 - 7.3.0.4.

Check java version installed on TADDM servers using the below command:

$COLLATION_HOME/external/<jdk- folder according to OS>/bin/java -version

• For TADDM 7.3.0.5 - 7.3.0.9 (JAVA 8), if the above command output contains “SR6 FP10” or “8.0.6.10” or higher as build in Java™ SE Runtime Environment information, apply efix for the new IBM SDK only,efix_jdk8.0.7.5_FP9211123.zip given in Table-1 below.
• For TADDM 7.3.0.3 - 7.3.0.4 (JAVA 7), if the above command output contains “SR10 FP65” or “7.0.10.65” or higher as build in Java™ SE Runtime Environment information, apply efix for the new IBM SDK only,efix_jdk7.0.11.5_FP420171214.zip given in Table-1 below.
• For TADDM 7.3.0.0 - 7.3.0.2 (JAVA 7), Please upgrade to IBM Tivoli Application Dependency Discovery Manager Version 7.3.0.3 or later (Preferably the latest release 7.3.0.9) and apply the above mentioned for (7.3.0.3 - 7.3.0.4) or (7.3.0.5 - 7.3.0.9)
• For all other cases:

The remediation consists of 2 steps:

1. Please contact IBM Support and open a case for a custom version of eFix “customJDK8.0.6.10” as this efix involves TADDM code changes. Include the current eFix level (ls -rlt etc/efix*), TADDM version and a link to this bulletin.
2. Along with the above efix, apply efix for the new IBM SDK as per TADDM version given in table below.

Table-1:

Please review the eFix readme in etc/efix_readme.txt. The fixes for the respective FixPack(s) can be downloaded and applied directly.

Fix|

VRMF

| APAR|How to acquire fix
—|—|—|—
efix_jdk8.0.7.5_FP9211123.zip|

7.3.0.5 - 7.3.0.9

| None| Download eFix
efix_jdk7.0.11.5_FP420171214.zip|

7.3.0.3 - 7.3.0.4

| None| Download eFix

Table-2:

Below are the JREs :

Fix|

VRMF

| APAR|How to acquire fix
—|—|—|—
ibm-java-jre-80-win-i386|

7.3.0.5 - 7.3.0.9

| None| Download eFix
ibm-java-jre-70-win-i386|

7.3.0.3 - 7.3.0.4

| None| Download eFix

Workarounds and Mitigations

None