Security Bulletin: Vulnerabilities in IBM Java SDK affecting IBM Application Discovery and Delivery Intelligence V5.1.0.7

Summary

Multiple vulnerabilities are identified in IBM® SDK Java™ Technology Edition Version 1.8 that is used by IBM Application Discovery and Delivery Intelligence V5.1.0.7. These issues were disclosed as part of the IBM Java SDK updates in July 2021.

Vulnerability Details

CVEID:CVE-2021-2388
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the VM component could allow an unauthenticated attacker to take control of the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205815 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:CVE-2021-2369
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Library component could allow an unauthenticated attacker to cause no confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205796 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

CVEID:CVE-2021-2432
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the JNDI 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/205856 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

Remediation/Fixes

Customers need to perform the following steps to apply the fix:

Obtain the latest Java JRE CPU update for the IBM Java SDK by using the following links:

• * [adi_ibm_jre_8.0.6.36_linux64](<https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7ERational&product=ibm/Rational/IBM+Application+Delivery+Intelligence&release=5.1.0.7&platform=All&function=all> "adi_ibm_jre_8.0.6.36_linux64" )
  

  • adi_ibm_jre_8.0.6.36_win64

• Upgrade your JRE by following the instructions in the link below:
  How to update the IBM SDK for Java of IBM Rational products based on version 3.0.1.6 or later of IBM’s Jazz technology

• Navigate to the server directory in your Rational product installation path, and go to jre/lib/security path.

• Open the java.security file by using your preferred text editor (e.g., Notepad for Windows or Vim Editor for Linux).

• Remove the MD5 option from the jdk.jar.disabledAlgorithms parameter set:

• Before modification:
  jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024

• After modification:
  jdk.jar.disabledAlgorithms=MD2, RSA keySize < 1024

Workarounds and Mitigations

None