Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect Rational Developer for i and Rational Developer for AIX and Linux

Security Bulletin

Summary

There are multiple vulnerabilities in IBM® SDK Java™ Technology Edition, Version 8 that is used by Rational Developer for i and Version 7 that is used by Rational Developer for AIX and Linux. These issues were disclosed as part of the IBM Java SDK updates in October 2019 (CVE-2019-2949, CVE-2019-2983, CVE-2019-2978, CVE-2019-2962) and in January 2020 (CVE-2020-2654, CVE-2019-4732).

Vulnerability Details

CVEID: CVE-2020-2654
DESCRIPTION: An unspecified vulnerability in Java SE related to the Java SE Libraries 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/174601 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-2019-2949
DESCRIPTION: An unspecified vulnerability in Java SE related to the Kerberos component could allow an unauthenticated attacker to obtain sensitive information resulting in a high confidentiality impact using unknown attack vectors.
CVSS Base score: 6.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/169254 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N)

CVEID: CVE-2019-2983
DESCRIPTION: An unspecified vulnerability in Java SE related to the 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/169289 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-2019-2978
DESCRIPTION: An unspecified vulnerability in Java SE related to the 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/169284 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-2019-2962
DESCRIPTION: An unspecified vulnerability in Java SE related to the 2D 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/169268 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) - VRMF
Rational Developer for i (RDi) RPG and COBOL Tools, Modernization Tools- Java Edition	9.6, 9.6.0.1, 9.6.0.2, 9.6.0.3, 9.6.0.4, 9.6.0.5,9.6.0.6, 9.6.0.7, 9.6.0.8
Rational Developer for AIX and Linux, AIX COBOL Edition	9.1, 9.1.1, 9.1.1.1, 9.1.1.2, 9.1.1.3, 9.1.1.4, 9.1.1.5

Remediation/Fixes

Update the IBM SDK, Java Technology Edition of the product to address this vulnerability:

Product	VRMF	Remediation/First Fix
Rational Developer for i	9.6 through to 9.6.0.8	For all versions, update the currently installed product using Installation Manager. For instructions on installing this update using Installation Manager, review the topic in the Updating Installed Product Packages IBM Knowledge Center. Or, you can optionally download the update manually and apply interim fix: IBM SDK Java Technology Edition Critical Patch Update - January 2020 - RDi. Make sure to click on the Java 8.0 Update FC link to update to IBM Java 8 SR6 FP10.
Rational Developer for AIX and Linux	9.1 through to 9.1.1.5	For all versions, update the currently installed product using Installation Manager. For instructions on installing this update using Installation Manager, review the topic in the Updating Installed Product Packages IBM Knowledge Center. Or, you can optionally download the update manually and apply interim fix: IBM SDK Java Technology Edition Critical Patch Update - January 2020- RDAL. Make sure to click on the Java 7.0 Update FC link to update to IBM Java 7 SR10 FP60.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

05 Jun 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: Multiple vulnerabilities in IBM Java SDK affect Rational Developer for i and Rational Developer for AIX and Linux - January 2020