Security Bulletin: Apr 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-2020-2805
DESCRIPTION: An unspecified vulnerability in Java SE related to the Java SE Libraries component could allow an unauthenticated attacker to take control of the system.
CVSS Base score: 8.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179703 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)

CVEID: CVE-2020-2803
DESCRIPTION: An unspecified vulnerability in multiple Oracle products could allow an unauthenticated attacker to take control of the system.
CVSS Base score: 8.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179701 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)

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)

CVEID: CVE-2020-2757
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/179657 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-2020-2756
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/179656 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

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

Upgrade the WebSphere Application Server Liberty Core used by CICS TG Gateway daemon. Updated WebSphere Application Server Liberty Core files used by 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-SR10 xLinux: 8.0.6-CICSTG-Linuxx8632-JRE-SR10 pLinux: 8.0.6-CICSTG-LinuxpSeries32-JRE-SR10 zLinux: 8.0.6-CICSTG-LinuxzSeries31-JRE-SR10 Windows:8.0.6-CICSTG-Windowsx8632-JRE-SR10 Solaris: 7.0.10-CICSTG-SolarisSPARC32-JRE-SR65	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. AIX: 7.1.4-CICSTG-AIXpSeries32-JRE-SR65 xLinux: 7.1.4-CICSTG-Linuxx8632-JRE-SR65 pLinux: 7.1.4-CICSTG-LinuxpSeries32-JRE-SR65 zLinux: 7.1.4-CICSTG-LinuxzSeries31-JRE-SR65 Windows: 7.1.4-CICSTG-Windowsx8632-JRE-SR65 Solaris: 7.0.10-CICSTG-SolarisSPARC32-JRE-SR65	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 9.0.0.5 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-SR65 AIX: 7.0.10-CICSTG-AIXpSeries32-JRE-SR65 xLinux: 7.0.10-CICSTG-Linuxx8632-JRE-SR65 pLinux: 7.0.10-CICSTG-LinuxpSeries32-JRE-SR65 zLinux: 7.0.10-CICSTG-LinuxzSeries31-JRE-SR65 Windows: 7.0.10-CICSTG-Windowsx8632-JRE-SR65	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

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

IBM Java SDK Security Bulletin

Change History

31 Jul 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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Tips

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