Security Bulletin: Security Vulnerabilities in IBM® Java SDK affect Rational Method Composer March 2019 CPU

Summary

There are multiple vulnerabilities in IBM Java Development kit, Version 7 which is used by IBM Rational Method Composer (RMC). These issues were disclosed as part of the IBM Java SDK updates in March 2019.

Vulnerability Details

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-2019-2426 DESCRIPTION: An unspecified vulnerability in Oracle Java SE related to the Java SE Networking component could allow an unauthenticated attacker to obtain sensitive information resulting in a low confidentiality impact using unknown attack vectors.
CVSS Base Score: 3.7
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/155744&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2018-11212 DESCRIPTION: libjpeg is vulnerable to a denial of service, caused by divide-by-zero error in the alloc_sarray function in jmemmgr.c. By persuading a victim to open a specially-crafted file, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 3.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/143429&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

Affected Products and Versions

Rational Method Composer 7.5.3.1

Rational Method Composer 7.5.3

Rational Method Composer 7.5.2.4

Remediation/Fixes

For Rational Method Composer 7.5.3.1 , upgrade the IBM Java development kit used with Rational Method Composer to version 7.1.4.40, which can be downloaded from:
Rational-RMC-7.5.3.1-JavaSE-JDK-7.1SR4FP40

For Rational Method Composer 7.5.3.0 , upgrade the IBM Java development kit used with Rational Method Composer to version 7.1.4.40, which can be downloaded from:
Rational-RMC-7.5.3.0-JavaSE-JDK-7.1SR4FP40

For Rational Method Composer 7.5.2.4 , upgrade the IBM Java development kit used with Rational Method Composer to version 7.0.10.40, which can be downloaded from:
Rational-RMC-7.5.2.4-JavaSE-JDK-7.0SR10FP40

Workarounds and Mitigations

None