REDHAT-BUG-1823542: Medium severity OpenJDK Concurrency vulnerability

Published Apr 13, 2020
·
Updated

A regular expression denial of service flaw was found in the Concurrency component of OpenJDK. The use of overly complex regular expressions in java.utils.Scanner could cause a high CPU usage when Scanner was used on parse certain inputs.

Affected Software

2 affected components
OpenJDK Concurrency
OpenJDK java.utils.Scanner

Event History

Apr 13, 2020
Data Sourced
via Red Hat·09:29 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

Which systems are potentially exposed?

Systems using OpenJDK components that invoke java.utils.Scanner to parse inputs are potentially exposed.

2

Which remediation advisories are referenced?

The referenced Red Hat advisories are RHSA-2020:1508 and RHSA-2020:1507. An Oracle April 2020 Java CPU advisory is also referenced.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203