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HistoryJun 19, 2020 - 3:00 p.m.

Security Bulletin: Multiple vulnerabilities in OpenSSL affect IBM Workload Scheduler

2020-06-1915:00:50
www.ibm.com
17

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

Summary

OpenSSL vulnerabilities were disclosed by the OpenSSL Project. OpenSSL is used by IBM Workload Manager. IBM Workload Manager has addressed the applicable CVEs

Vulnerability Details

CVE-ID: CVE-2018-0732
Description: OpenSSL is vulnerable to a denial of service, caused by the sending of a very large prime value to the client by a malicious server during key agreement in a TLS handshake. By spending an unreasonably long period of time generating a key for this prime, a remote attacker could exploit this vulnerability to cause the client to hang.
CVSS Base Score: 3.7
CVSS Temporal Score: <https://exchange.xforce.ibmcloud.com/vulnerabilities/144658&gt; for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVE-ID: CVE-2018-0734
Description: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a timing side channel attack in the DSA signature algorithm. An attacker could exploit this vulnerability using variations in the signing algorithm to recover the private key.
CVSS Base Score: 3.7
CVSS Temporal Score: <https://exchange.xforce.ibmcloud.com/vulnerabilities/152085&gt; for more information
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)

Affected Products and Versions

IBM Workload Scheduler uses OpenSSL only for secure communication between internal processes.
For IBM Workload Scheduler Distributed, Workload Scheduler nodes are impacted by OpenSSL security exposures only if the IWS workstation has been defined with “securitylevel” set to on or enabled or force.
These security exposures do not apply to WebSphere Application Server but only to programs installed under <TWS home>/bin.
Tivoli Workload Scheduler Distributed 9.1.0 FP02 and earlier
Tivoli Workload Scheduler Distributed 9.2.0 FP03 and earlier
IBM Workload Scheduler Distributed 9.3.0 FP03 and earlier
IBM Workload Scheduler Distributed 9.4.0 FP04 and earlier

Remediation/Fixes

APAR IJ11456 has been opened to address the openssl vulnerabilities for IBM Workload Scheduler.
The following limited availability fixes for IJ11456 are available for download on FixCentral
9.1.0-TIV-TWS-FP0002-IJ11456
to be applied on top of Tivoli Workload Scheduler Distributed 9.1.0 FP02
9.2.0-TIV-TWS-FP0003-IJ11456
to be applied on top of Tivoli Workload Scheduler Distributed 9.2.0 FP03
9.3.0-TIV-TWS-FP0003-IJ11456
to be applied on top of Tivoli Workload Scheduler Distributed 9.3.0 FP03

APAR IJ07385 has been included in 9.4.0-TIV-TWS-FP0005.
For these affected releases IJ07385, supersedes IJ00716, IV91052, IV85683, IV82641, IV71646, IV70763, IV66395, IV66398, IV62010, IV61392, IV75062, IJ07385.
For Unsupported releases IBM recommends upgrading to a fixed, supported release of the product.

Workarounds and Mitigations

None

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

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