Security Bulletin
Summary
OpenSSL vulnerabilities were disclosed by the OpenSSL Project. OpenSSL is used by IBM Workload Scheduler. IBM Workload Scheduler has addressed the applicable CVEs
Vulnerability Details
CVEID: CVE-2019-1547
DESCRIPTION: OpenSSL could allow a local authenticated attacker to obtain sensitive information, caused by the ability to construct an EC group missing the cofactor using explicit parameters instead of using a named curve. An attacker could exploit this vulnerability to obtain full key recovery during an ECDSA signature operation.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167020 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2019-1549
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by the failure to include protection in the event of a fork() system call to ensure that the parent and child processes do not share the same RNG state. An attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167021 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2019-1563
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a padding oracle attack in PKCS7_dataDecode and CMS_decrypt_set1_pkey. By sending an overly large
number of messages to be decrypted, an attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167022 for the current score.
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 9.2.0 FP03 and earlier
IBM Workload Scheduler Distributed 9.3.0 FP03 and earlier
IBM Workload Scheduler Distributed 9.4.0 FP06 and earlier
IBM Workload Scheduler Distributed 9.5.0 FP01 and earlier
Remediation/Fixes
APAR IJ23384 has been opened to address the openssl vulnerabilities for IBM Workload Scheduler.
The following limited availability fixes for IJ23384 are available for download on FixCentral
9.2.0-TIV-TWS-FP0003-IJ23384
to be applied on top of Tivoli Workload Scheduler Distributed 9.2.0 FP03
9.4.0-TIV-TWS-FP0006-IJ23384
to be applied on top of Tivoli Workload Scheduler Distributed 9.4.0 FP06
APAR IJ23384 has been included in 9.3.0-TIV-TWS-FP0004 and 9.5.0-TIV-TWS-FP0002.
For these affected releases IJ07385, supersedes IJ00716, IV91052, IV85683, IV82641, IV71646, IV70763, IV66395, IV66398, IV62010, IV61392, IV75062, IJ07385, IJ11456.
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
24 Apr 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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Document Information
Modified date:
19 June 2020
UID
ibm16199286