Security Bulletin: 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

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 References section for more information.

CVEID: CVE-2018-12547 DESCRIPTION: Eclipse OpenJ9 is vulnerable to a buffer overflow, caused by improper bounds checking by the jio_snprintf() and jio_vsnprintf() functions. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 9.8
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/157512&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2018-12549 DESCRIPTION: Eclipse OpenJ9 could allow a remote attacker to execute arbitrary code on the system, caused by the failure to omit a null check on the receiver object of an Unsafe call when accelerating it. An attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 9.8
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/157513&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2018-1890 DESCRIPTION: IBM SDK, Java Technology Edition Version 8 on the AIX platform uses absolute RPATHs which may facilitate code injection and privilege elevation by local users.

CVSS Base Score: 5.6
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/152081&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L)

Affected Products and Versions

CICS Transaction Gateway v8.0.0.0 – 8.0.0.6
CICS Transaction Gateway v8.1.0.0 – 8.1.0.5
CICS Transaction Gateway v9.0.0.0 – 9.0.0.4
CICS Transaction Gateway v9.1.0.0 – 9.1.0.3
CICS Transaction Gateway v9.2.0.0 – 9.2.0.2

Remediation/Fixes

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: 8.0.5-CICSTG-AIXpSeries32-JRE-SR31
HP-UX: 8.0.5-CICSTG-HPUXIA32-JRE-SR30
xLinux: 8.0.5-CICSTG-Linuxx8632-JRE-SR31
pLinux: 8.0.5-CICSTG-LinuxpSeries32-JRE-SR31
zLinux: 8.0.5-CICSTG-LinuxzSeries31-JRE-SR31
Windows:8.0.5-CICSTG-Windowsx8632-JRE-SR31 |
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-SR40
AIX: 7.1.4-CICSTG-AIXpSeries32-JRE-SR40
xLinux: 7.1.4-CICSTG-Linuxx8632-JRE-SR40
pLinux: 7.1.4-CICSTG-LinuxpSeries32-JRE-SR40
zLinux: 7.1.4-CICSTG-LinuxzSeries31-JRE-SR40
Windows: 7.1.4-CICSTG-Windowsx8632-JRE-SR40 |
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-SR40
AIX: 7.0.10-CICSTG-AIXpSeries32-JRE-SR40
xLinux: 7.0.10-CICSTG-Linuxx8632-JRE-SR40
pLinux: 7.0.10-CICSTG-LinuxpSeries32-JRE-SR40
zLinux: 7.0.10-CICSTG-LinuxzSeries31-JRE-SR40
Windows: 7.0.10-CICSTG-Windowsx8632-JRE-SR40 | 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=9.0.0&query.platform=All

Workarounds and Mitigations

None