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Security Bulletin: App Connect Enterprise Certified Container may be vulnerable to a denial of service vulnerability (CVE-2020-1971)

Security Bulletin


Summary

If an App Connect flow calls a URL at an endpoint controlled by a malicious user that also controls a Certificate Revocation List, those calls may trigger an application crash resulting in a denial of service.

Vulnerability Details

CVEID:   CVE-2020-1971
DESCRIPTION:   OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference. If the GENERAL_NAME_cmp function contain an EDIPARTYNAME, 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/192748 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)
App Connect Enterprise Certified Container1.0 with Operator
App Connect Enterprise Certified Container1.1 with Operator

Remediation/Fixes

App Connect Enterprise Certified Container 1.0 CD

Upgrade to App Connect Enterprise Certified Container to Operator version 1.2.0 (available in CASE 1.2.0) or higher, and ensure that any IntegrationServer and Designer components are at 11.0.0.11-r1 or higher.

App Connect Enterprise Certified Container 1.1 LTS

Upgrade to App Connect Enterprise Certified Container Operator version 1.1.1 EUS (available in CASE 1.1.1) or higher, and ensure that any IntegrationServer and Designer components are at 11.0.0.12-r1-eus or higher.





Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

See https://www.ibm.com/support/pages/node/6239294 for information supported levels of the ACE Certified Container Operator

Acknowledgement

Change History

11 Mar 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

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:
28 April 2021

Initial Publish date:
11 March 2021

UID

ibm16429499

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