Security Bulletin
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 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 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
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References
Change History
Decembre 21th 2018: Original Version Published
*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.
Historical Number
TWS OpenSSL CVE-2018-0734 CVE-2018-0732
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Document Information
Modified date:
19 June 2020
UID
ibm10792469