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

Security Bulletin

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

Affected Product(s)	Version(s)
IBM CICS Transaction Gateway	9.1
IBM CICS Transaction Gateway	9.2
IBM CICS Transaction Gateway	9.0
IBM CICS Transaction Gateway	8.1
IBM CICS Transaction Gateway	8.0

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	VRMF	APAR	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

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

IBM Java SDK Security Bulletin

Acknowledgement

Change History

16 Mar 2020: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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