Security Bulletin: Security Vulnerabilities affect IBM Cloud Private - Kubernetes (CVE-2021-25737)

Summary

Security Vulnerabilities affect IBM Cloud Private - Kubernetes

Vulnerability Details

CVEID:CVE-2021-25737
**DESCRIPTION:**Kubernetes could allow a remote authenticated attacker to obtain sensitive information, caused by a host network hijacking flaw due to holes in EndpointSlice validation. By redirecting pod traffic to private networks on a Node, an attacker could exploit this vulnerability to obtain sensitive information, and use this information to launch further attacks against the affected system.
CVSS Base score: 2.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202128 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

Product defect fixes and security updates are only available for the two most recent Continuous Delivery (CD) update packages

• IBM Cloud Private 3.2.1
• IBM Cloud Private 3.2.2

For IBM Cloud Private 3.2.1, apply fix pack:

• IBM Cloud Private 3.2.1.2203

For IBM Cloud Private 3.2.2, apply fix pack:

• IBM Cloud Private 3.2.2.2203

For IBM Cloud Private 3.1.0, 3.1.1, 3.1.2, 3.2.0

• Upgrade to the latest Continuous Delivery (CD) update package, IBM Cloud Private 3.2.2.
• If required, individual product fixes can be made available between CD update packages for resolution of problems. Contact IBM support for assistance

Workarounds and Mitigations

None