Security Bulletin: Vulnerability in HAProxy affecting Watson Knowledge Catalog for IBM Cloud Pak for Data

Summary

HAProxy is vulnerable to a denial of service that is impacting Watson Knowledge Catalog for IBM Cloud Pak for Data. This vulnerability has been addressed.

Vulnerability Details

CVEID:CVE-2022-0711
**DESCRIPTION:**HAProxy is vulnerable to a denial of service, caused by a flaw when processing HTTP responses containing the “Set-Cookie2” header. By sending specially-crafted HTTP response packets, a remote attacker could exploit this vulnerability to cause an infinite loop, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/221052 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

Remediation/Fixes

Install IBM Cloud Pak for Data 4.0 refresh 7 or higher: <https://www.ibm.com/docs/en/cloud-paks/cp-data/4.0?topic=overview-whats-new#whats-new__refresh-7&gt;

Install IBM Cloud Pak for Data 3.5 refresh 13 or higher: <https://www.ibm.com/docs/en/cloud-paks/cp-data/3.5.0?topic=overview-whats-new#whats-new__refresh-13&gt;

Workarounds and Mitigations

None. HAProxy must be upgraded.