Security Bulletin: Possible denial of service attack affecting Watson Knowledge Catalog for IBM Cloud Pak for Data

Summary

A vulnerability in the Redis service packaged as part of Watson Knowledge Catalog for IBM Cloud Pak for Data could lead to denial of service attacks. The issue is now addressed.

Vulnerability Details

CVEID:CVE-2020-14147
**DESCRIPTION:**Redis is vulnerable to a denial of service, caused by an integer overflow in the getnum function in lua_struct.c in Redis. By sending a specially crafted command with a large number, a remote attacker could exploit this vulnerability to cause a stack-based buffer overflow, leading a denial of service…
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183518 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Remediation/Fixes

Install wkc-patch-3.0.1.2 for IBM Cloud Pak for Data.

See <https://www.ibm.com/support/pages/node/5693666&gt; for details.

Workarounds and Mitigations

The Redis service is only accessible from within the CPD RHOS cluster and not exposed to the outside. It greatly reduces the risk of possible attacks.