7.5
Advisory Published
Updated

CVE-2020-5877

First published: Thu Apr 30 2020(Updated: )

On BIG-IP 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, malformed input to the DATAGRAM::tcp iRules command within a FLOW_INIT event may lead to a denial of service.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Access Policy Manager>=11.6.1<=11.6.5.1
F5 Access Policy Manager>=12.1.0<=12.1.5.1
F5 Access Policy Manager>=13.1.0<=13.1.3.3
F5 Access Policy Manager>=14.1.0<=14.1.2.3
F5 Access Policy Manager>=15.0.0<=15.1.0.1
F5 BIG-IP Advanced Firewall Manager>=11.6.1<=11.6.5.1
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.5.1
F5 BIG-IP Advanced Firewall Manager>=13.1.0<=13.1.3.3
F5 BIG-IP Advanced Firewall Manager>=14.1.0<=14.1.2.3
F5 BIG-IP Advanced Firewall Manager>=15.0.0<=15.1.0.1
F5 BIG-IP Analytics>=11.6.1<=11.6.5.1
F5 BIG-IP Analytics>=12.1.0<=12.1.5.1
F5 BIG-IP Analytics>=13.1.0<=13.1.3.3
F5 BIG-IP Analytics>=14.1.0<=14.1.2.3
F5 BIG-IP Analytics>=15.0.0<=15.1.0.1
F5 BIG-IP Application Acceleration Manager>=11.6.1<=11.6.5.1
F5 BIG-IP Application Acceleration Manager>=12.1.0<=12.1.5.1
F5 BIG-IP Application Acceleration Manager>=13.1.0<=13.1.3.3
F5 BIG-IP Application Acceleration Manager>=14.1.0<=14.1.2.3
F5 BIG-IP Application Acceleration Manager>=15.0.0<=15.1.0.1
F5 Application Security Manager>=11.6.1<=11.6.5.1
F5 Application Security Manager>=12.1.0<=12.1.5.1
F5 Application Security Manager>=13.1.0<=13.1.3.3
F5 Application Security Manager>=14.1.0<=14.1.2.3
F5 Application Security Manager>=15.0.0<=15.1.0.1
F5 BIG-IP>=11.6.1<=11.6.5.1
F5 BIG-IP>=12.1.0<=12.1.5.1
F5 BIG-IP>=13.1.0<=13.1.3.3
F5 BIG-IP>=14.1.0<=14.1.2.3
F5 BIG-IP>=15.0.0<=15.1.0.1
F5 BIG-IP Fraud Protection Service>=11.6.1<=11.6.5.1
F5 BIG-IP Fraud Protection Service>=12.1.0<=12.1.5.1
F5 BIG-IP Fraud Protection Service>=13.1.0<=13.1.3.3
F5 BIG-IP Fraud Protection Service>=14.1.0<=14.1.2.3
F5 BIG-IP Fraud Protection Service>=15.0.0<=15.1.0.1
Riverbed SteelApp Traffic Manager>=11.6.1<=11.6.5.1
Riverbed SteelApp Traffic Manager>=12.1.0<=12.1.5.1
Riverbed SteelApp Traffic Manager>=13.1.0<=13.1.3.3
Riverbed SteelApp Traffic Manager>=14.1.0<=14.1.2.3
Riverbed SteelApp Traffic Manager>=15.0.0<=15.1.0.1
F5 BIG-IP Link Controller>=11.6.1<=11.6.5.1
F5 BIG-IP Link Controller>=12.1.0<=12.1.5.1
F5 BIG-IP Link Controller>=13.1.0<=13.1.3.3
F5 BIG-IP Link Controller>=14.1.0<=14.1.2.3
F5 BIG-IP Link Controller>=15.0.0<=15.1.0.1
Riverbed SteelApp Traffic Manager>=11.6.1<=11.6.5.1
Riverbed SteelApp Traffic Manager>=12.1.0<=12.1.5.1
Riverbed SteelApp Traffic Manager>=13.1.0<=13.1.3.3
Riverbed SteelApp Traffic Manager>=14.1.0<=14.1.2.3
Riverbed SteelApp Traffic Manager>=15.0.0<=15.1.0.1
F5 BIG-IP Policy Enforcement Manager>=11.6.1<=11.6.5.1
F5 BIG-IP Policy Enforcement Manager>=12.1.0<=12.1.5.1
F5 BIG-IP Policy Enforcement Manager>=13.1.0<=13.1.3.3
F5 BIG-IP Policy Enforcement Manager>=14.1.0<=14.1.2.3
F5 BIG-IP Policy Enforcement Manager>=15.0.0<=15.1.0.1

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 CVE-2020-5877?

    CVE-2020-5877 has a severity rating of high due to its potential to cause denial of service.

  • How do I fix CVE-2020-5877?

    To fix CVE-2020-5877, upgrade your F5 BIG-IP software to a version that is not affected, specifically above the versions listed in the vulnerability.

  • What are the affected versions for CVE-2020-5877?

    CVE-2020-5877 affects F5 BIG-IP versions 11.6.1 to 11.6.5.1, 12.1.0 to 12.1.5.1, 13.1.0 to 13.1.3.3, 14.1.0 to 14.1.2.3, and 15.0.0 to 15.1.0.1.

  • What could be the impact of CVE-2020-5877 if exploited?

    If exploited, CVE-2020-5877 could lead to a denial of service, which disrupts normal operation of the affected F5 BIG-IP services.

  • When was CVE-2020-5877 published?

    CVE-2020-5877 was published in December 2020.

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