Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect IBM Z Development and Test Environment - April 2020

Summary

There are multiple vulnerabilities in IBM® SDK Java™ Technology Edition, Version 8 that is used by IBM Z Development and Test Environment. These issues were disclosed as part of the IBM Java SDK updates in October 2019 (CVE-2019-2989), in January 2020 (CVE-2020-2593, CVE-2020-2654) and in April 2020 (CVE-2020-2781).

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)

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-2019-2989
**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-2020-2781
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE JSSE 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: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179681 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Remediation/Fixes

For all versions, update the currently installed ZD&T Enterprise Edition using the v12.0.5.1 Installer. For instructions on installing this update using Installer, review the topic in the Updating Enterprise Edition IBM Knowledge Center. For the latest updates, see also the Fix list for IBM Z Development and Test Environment.

Workarounds and Mitigations

None