Security Bulletin: Jan 2020 : Multiple vulnerabilities in IBM Java Runtime affect CICS Transaction Gateway

Summary

There are multiple vulnerabilities in IBM® Runtime Environment Java™ Versions 7.0, 7.1 and 8.0 used by CICS Transaction Gateway. CICS Transaction Gateway has addressed the applicable CVEs.

Vulnerability Details

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-2020-2659
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Networking 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/174606 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-2020-2583
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Serialization 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/174531 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-2019-4732
**DESCRIPTION:**IBM SDK, Java Technology Edition Version 7.0.0.0 through 7.0.10.55, 7.1.0.0 through 7.1.4.55, and 8.0.0.0 through 8.0.6.0 could allow a local authenticated attacker to execute arbitrary code on the system, caused by DLL search order hijacking vulnerability in Microsoft Windows client. By placing a specially-crafted file in a compromised folder, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 172618.
CVSS Base score: 7.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172618 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

If you run your own Java code using the IBM Java Runtime delivered with this product, you should evaluate your code to determine whether additional Java vulnerabilities are applicable to your code. For a complete list of vulnerabilities, refer to the “IBM Java SDK Security Bulletin”, located in the Reference section for more information.

Otherwise, upgrade the JRE used by CICS TG Java client applications and/or the CICS TG Gateway daemon. Updated JREs which can used with CICS TG Java client applications and the Gateway daemon are made available on Fix Central.

Product

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VRMF

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APAR

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Remediation / First Fix

—|—|—|—
CICS Transaction Gateway for Multiplatforms| 9.2.0.0
9.2.0.1
9.2.0.2| Updated JRE’s have been made available on Fix Central as Fix packs.
AIX: 8.0.6-CICSTG-AIXpSeries32-JRE-SR5
xLinux: 8.0.6-CICSTG-Linuxx8632-JRE-SR5
pLinux: 8.0.6-CICSTG-LinuxpSeries32-JRE-SR5
zLinux: 8.0.6-CICSTG-LinuxzSeries31-JRE-SR5
Windows:8.0.6-CICSTG-Windowsx8632-JRE-SR5|
https://www-945.ibm.com/support/fixcentral/swg/identifyFixes?query.parent=ibm~Other%20software&query.product=ibm~WebSphere~CICS%20Transaction%20Gateway%20for%20Multiplatforms&query.release=9.2.0&query.platform=All
CICS Transaction Gateway for Multiplatforms| 9.1.0.0
9.1.0.1
9.1.0.2
9.1.0.3| Updated JRE’s have been made available on Fix Central as Fix packs.
Solaris: 7.0.10-CICSTG-SolarisSPARC32-JRE-SR60
AIX: 7.1.4-CICSTG-AIXpSeries32-JRE-SR60
xLinux: 7.1.4-CICSTG-Linuxx8632-JRE-SR60
pLinux: 7.1.4-CICSTG-LinuxpSeries32-JRE-SR60
zLinux: 7.1.4-CICSTG-LinuxzSeries31-JRE-SR60
Windows: 7.1.4-CICSTG-Windowsx8632-JRE-SR60|
https://www-945.ibm.com/support/fixcentral/swg/identifyFixes?query.parent=ibm~Other%20software&query.product=ibm~WebSphere~CICS%20Transaction%20Gateway%20for%20Multiplatforms&query.release=9.1.0&query.platform=All
CICS Transaction Gateway for Multiplatforms| 9.0.0.0
9.0.0.1
9.0.0.2
9.0.0.3
9.0.0.4
8.1.0.0
8.1.0.1
8.1.0.2
8.1.0.3
8.1.0.4
8.1.0.5
8.0.0.0
8.0.0.1
8.0.0.2
8.0.0.3
8.0.0.4
8.0.0.5
8.0.0.6| Updated JRE’s have been made available on Fix Central as Fix packs.
Solaris: 7.0.10-CICSTG-SolarisSPARC32-JRE-SR60
AIX: 7.0.10-CICSTG-AIXpSeries32-JRE-SR60
xLinux: 7.0.10-CICSTG-Linuxx8632-JRE-SR60
pLinux: 7.0.10-CICSTG-LinuxpSeries32-JRE-SR60
zLinux: 7.0.10-CICSTG-LinuxzSeries31-JRE-SR60
Windows: 7.0.10-CICSTG-Windowsx8632-JRE-SR60| https://www-945.ibm.com/support/fixcentral/swg/identifyFixes?query.parent=ibm~Other%20software&query.product=ibm~WebSphere~CICS%20Transaction%20Gateway%20for%20Multiplatforms&query.release

Workarounds and Mitigations

None