CVE-2021-36088: Double Free

Published Jul 1, 2021
·
Updated

Fluent Bit (aka fluent-bit) 1.7.0 through 1.7,4 has a double free in flbfree (called from flbparserjsondo and flbparserdo).

Other sources

Fluent Bit (aka fluent-bit) 1.7.0 through 1.7.4 has a double free in flbfree (called from flbparserjsondo and flbparserdo).

MITRE

Affected Software

1 affected component
Treasuredata Fluent Bit>=1.7.0<=1.7.4

Event History

Jul 1, 2021
CVE Published
via MITRE·02:50 AM
Data Sourced
via MITRE·02:50 AM
Description
Data Sourced
via NVD·03:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2021-36088?

CVE-2021-36088 has been classified with a high severity due to the presence of a double free vulnerability.

2

How do I fix CVE-2021-36088?

To fix CVE-2021-36088, you should upgrade Fluent Bit to version 1.7.5 or later.

3

What versions of Fluent Bit are affected by CVE-2021-36088?

Fluent Bit versions from 1.7.0 to 1.7.4 are affected by CVE-2021-36088.

4

What are the potential impacts of CVE-2021-36088?

The double free vulnerability in CVE-2021-36088 could lead to crashes or unexpected behavior in Fluent Bit.

5

How can I determine if my installation is vulnerable to CVE-2021-36088?

You can determine if your installation is vulnerable by checking the version of Fluent Bit you are currently using.

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