IBM Support

Security Bulletin: Multiple vulnerabilities in OpenSSL may affect IBM Workload Scheduler

Security Bulletin


Summary

OpenSSL vulnerabilities CVE-2021-23840, and CVE-2021-23841 have been disclosed by the OpenSSL Project. OpenSSL is used by IBM Workload Scheduler. IBM Workload Scheduler has addressed the CVE

Vulnerability Details

CVEID:   CVE-2021-23840
DESCRIPTION:   OpenSSL is vulnerable to a denial of service, caused by an integer overflow in CipherUpdate. By sending an overly long argument, an attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/196848 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2021-23841
DESCRIPTION:   OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in the X509_issuer_and_serial_hash() function. By parsing the issuer field, an attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/196847 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Workload Automation9.5
IBM Workload Automation9.4

Remediation/Fixes

APAR IJ30802 has been opened to address the openssl vulnerabilities for IBM Workload Scheduler.
APAR IJ30802 has been included in 9.5.0.04. For release 9.4, the apar is available on FixCentral for download, to be applied on top of 9.4.0.07.
For Unsupported releases IBM recommends upgrading to a fixed, supported release of the product.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

05 Aug 2021: 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location

Worldwide

[{"Business Unit":{"code":"BU004","label":"Hybrid Cloud"},"Product":{"code":"SSCHEZ","label":"IBM Workload Automation"},"Component":"","Platform":[{"code":"PF027","label":"Solaris"},{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"},{"code":"PF010","label":"HP-UX"}],"Version":"9.4, 9.5","Edition":""}]

Document Information

Modified date:
08 September 2021

UID

ibm16479349