Security Bulletin: Denial of service vulnerability in Johnzon affects IBM Business Automation Workflow - CVE-2023-33008

Summary

IBM Business Automation Workflow is vulnerable to a denial of service attack.

Vulnerability Details

CVEID:CVE-2023-33008
**DESCRIPTION:**Apache Johnzon is vulnerable to a denial of service, caused by an unsafe deserialization flaw in BigDecimal. By sending a specially crafted JSON input, a remote attacker could exploit this vulnerability to cause a slow conversion, and results in a denial of service condition.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/259976 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

V23.0.2 - V23.0.2-IF002
V23.0.1 all fixes
V22.0.2 all fixes
V22.0.1 all fixes
V21.0.3 - V21.0.3-IF030
V21.0.2 all fixes
V20.0.0.2 all fixes
V20.0.0.1 all fixes

| affected
IBM Business Automation Workflow traditional| V23.0.1 - V23.0.2
V22.0.1 - V22.0.2
V21.0.1 - V21.0.3.1
V20.0.0.1 - V20.0.0.2
V19.0.0.1 - V19.0.0.3| affected
IBM Business Automation Workflow Enterprise Service Bus| V23.0.1 - V23.0.2
V22.0.2| affected

For earlier and unsupported versions of the products, IBM recommends upgrading to a fixed, supported version of the product.

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR DT261360 as soon as practical.

V23.0.1
V22.0.1 - V22.0.2
V21.0.1 - V21.0.3.0
V20.0.0.1 - V20.0.0.2
V19.0.0.1 - V19.0.0.3
V18.0.0.1 - V18.0.0.3

| Upgrade to a long term support release or the latest SSCD version. See IBM Business Automation Workflow and IBM Integration Designer Software Support Lifecycle Addendum

Workarounds and Mitigations

None