CWE
362
Advisory Published
Updated

F5-K000139532: Race Condition

First published: Tue May 07 2024(Updated: )

An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.

Affected SoftwareAffected VersionHow to fix
F5 BIG-IP and BIG-IQ Centralized Management=17.5.0>=17.1.0<=17.1.2
17.1.2.2
F5 BIG-IP and BIG-IQ Centralized Management>=16.1.0<=16.1.6
F5 BIG-IP and BIG-IQ Centralized Management>=15.1.0<=15.1.10

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of F5-K000139532?

    The severity of F5-K000139532 is high due to its potential to render the Node.js HTTP/2 server completely unavailable.

  • What versions of F5 BIG-IP are affected by F5-K000139532?

    F5-K000139532 affects F5 BIG-IP versions from 15.1.0 to 15.1.10, 16.1.0 to 16.1.4, and 17.1.0 to 17.1.1.

  • How do I fix F5-K000139532?

    To fix F5-K000139532, you should upgrade your F5 BIG-IP to a version that is not affected by this vulnerability.

  • What is the impact of F5-K000139532 on my system?

    The impact of F5-K000139532 on your system is that it can lead to denial of service, making the HTTP/2 server unavailable.

  • Is there a workaround for F5-K000139532?

    Currently, there are no documented workarounds for F5-K000139532 other than applying the available updates.

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.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203