F5-K000137090: Low severity F5 BIG-IP vulnerability

Published Oct 2, 2023
·
Updated

CVE-2018-12121 Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Denial of Service with large HTTP headers: By using a combination of many requests with maximum sized headers (almost 80 KB per connection), and carefully timed completion of the headers, it is possible to cause the HTTP server to abort from heap allocation failure. Attack potential is mitigated by the use of a load balancer or other proxy layer. CVE-2018-12122 Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Slowloris HTTP Denial of Service: An attacker can cause a Denial of Service (DoS) by sending headers very slowly keeping HTTP or HTTPS connections and associated resources alive for a long period of time. CVE-2018-12123 Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a mixed case "javascript:" (e.g. "javAscript:") protocol (other protocols are not affected). If security decisions are made about the URL based on the hostname, they may be incorrect.

Affected Software

6 affected componentsFixes available
F5 BIG-IP=17.5.0, >=17.1.0<=17.1.2
17.5.117.1.3
F5 BIG-IP>=16.1.0<=16.1.6
F5 BIG-IP>=15.1.0<=15.1.10
F5 BIG-IP>=14.1.0<=14.1.5
F5 BIG-IP>=13.1.0<=13.1.5
F5 BIG-IQ Centralized Management>=8.0.0<=8.4.0
8.4.1

Event History

Oct 2, 2023
Advisory Published
via F5·06:55 PM
Data Sourced
via F5·06:55 PM
DescriptionSeverityWeaknessAffected 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 F5-K000137090?

The severity of F5-K000137090 is classified as a Denial of Service vulnerability.

2

How do I fix F5-K000137090?

To fix F5-K000137090, upgrade to Node.js versions 6.15.0, 8.14.0, 10.14.0 or 11.3.0 or later.

3

What products are affected by F5-K000137090?

Affected products include multiple versions of F5 BIG-IP and F5 BIG-IQ Centralized Management.

4

Is it possible to exploit F5-K000137090?

Yes, F5-K000137090 can be exploited by sending many requests with large HTTP headers to trigger a Denial of Service.

5

What versions of Node.js are vulnerable in F5-K000137090?

All Node.js versions prior to 6.15.0, 8.14.0, 10.14.0, and 11.3.0 are considered vulnerable in F5-K000137090.

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