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Security Bulletin: IBM App Connect Enterprise Certified Container Operator may be vulnerable to DoS caused by a flaw in Golang module net/http (CVE-2021-31525)

Security Bulletin


Summary

The validation webhook in the Operator for IBM App Connect may be vulnerable to a denial of service vulnerability. By sending a message with a specially crafted header, an attacker could cause a denial of service condition in the validation webhook that prevents new deployments from completing or configuration changes to existing deployments to complete.

Vulnerability Details

CVEID:   CVE-2021-31525
DESCRIPTION:   Golang Go is vulnerable to a denial of service, caused by a flaw in net/http. By sending a specially-crafted header to ReadRequest or ReadResponse. Server, Transport, and Client, a remote attacker could exploit this vulnerability to cause a (panic) denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202709 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
App Connect Enterprise Certified Container1.2 with Operator
App Connect Enterprise Certified Container1.3 with Operator
App Connect Enterprise Certified Container1.4 with Operator

Remediation/Fixes

App Connect Enterprise Certified Container 1.0, 1.2, 1.3 and 1.4 CD

Upgrade to App Connect Enterprise Certified Container Operator version 1.5.0 (available in CASE 1.5.0) or higher.

App Connect Enterprise Certified Container 1.1 LTS

Upgrade to App Connect Enterprise Certified Container Operator version 1.1.2 EUS (available in CASE 1.1.2) 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

02 Jul 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:
14 July 2021

Initial Publish date:
02 July 2021

UID

ibm16469447

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