Security Bulletin: Vulnerabilities in WebSphere liberty related to DOS

Summary

There are vulnerabilities in WebSphere liberty related to DOS used by IBM Streams. IBM Streams has addressed the applicable CVEs.

Vulnerability Details

CVEID:CVE-2019-4720
**DESCRIPTION:**IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume all available memory. IBM X-Force ID: 172125.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172125 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

NOTE: Fix Packs are available on IBM Fix Central.

To remediate/fix this issue, follow the instructions below:

Version 4.3.x: Apply 4.3.0 Fix Pack 1 (4.3.1.2) or higher .
Version 4.2.x: Apply 4.2.1 Fix Pack 4 (4.2.1.10) or higher .
Version 4.1.x: Apply 4.1.1 Fix Pack 6 (4.1.1.12) or higher .
Versions 4.0.x,3.2.x, 3.1.x, and 3.0.x: For versions earlier than 4.x.x, IBM recommends upgrading to a fixed, supported version/release/platform of the product. Customers who cannot upgrade and need to secure their installation should open a PMR with IBM Technical Support and request assistance securing their InfoSphere Streams system against the vulnerabilities identified in this Security Bulletin.

Workarounds and Mitigations

None