Security Bulletin: Vulnerability in IBM® Runtime Environment Java™ Technology Edition affects WebSphere eXtreme Scale

2021-04-0912:42:00

www.ibm.com

ibm runtime environment

java technology edition

websphere extreme scale

buffer overflow

cve-2020-27221

vulnerability

eclipse openj9

stack-based

websphere

ph34473

EPSS

0.004

Percentile

74.6%

JSON

Summary

There is a vulnerability in IBM Runtime Environment Java Technology Edition Version 7 and 8 used by WebSphere eXtreme Scale. The issues were disclosed as part of the IBM SDK, Java Technology Edition updates in February 2021.

Vulnerability Details

CVEID:CVE-2020-27221
**DESCRIPTION:**Eclipse OpenJ9 is vulnerable to a stack-based buffer overflow when the virtual machine or JNI natives are converting from UTF-8 characters to platform encoding. By sending an overly long string, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/195353 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
WebSphere Extreme Scale	8.6.1
WebSphere Extreme Scale	8.6.0

Remediation/Fixes

Product	VRMF	APAR	Remediation/First Fix
WebSphere eXtreme Scale	8.6.0.8	PH34473	Refer to the Version 8.6 table in the Recommended Fixes page for WebSphere eXtreme Scale.
WebSphere eXtreme Scale	8.6.1.4	PH34473	Refer to the Version 8.6.1 table in the Recommended Fixes page for WebSphere eXtreme Scale.