high
7.5
Advisory Published
Updated

CVE-2021-22977

First published: Fri Feb 12 2021(Updated: )

On BIG-IP version 16.0.0-16.0.1 and 14.1.2.4-14.1.3, cooperation between malicious HTTP client code and a malicious server may cause TMM to restart and generate a core file. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 BIG-IP Access Policy Manager>=14.1.0<14.1.3.1
F5 BIG-IP Access Policy Manager>=16.0.0<16.0.1.1
F5 BIG-IP Advanced Firewall Manager>=14.1.0<14.1.3.1
F5 BIG-IP Advanced Firewall Manager>=16.0.0<16.0.1.1
F5 Big-ip Advanced Web Application Firewall>=14.1.0<14.1.3.1
F5 Big-ip Advanced Web Application Firewall>=16.0.0<16.0.1.1
F5 BIG-IP Analytics>=14.1.0<14.1.3.1
F5 BIG-IP Analytics>=16.0.0<16.0.1.1
F5 Big-ip Application Acceleration Manager>=14.1.0<14.1.3.1
F5 Big-ip Application Acceleration Manager>=16.0.0<16.0.1.1
F5 BIG-IP Application Security Manager>=14.1.0<14.1.3.1
F5 BIG-IP Application Security Manager>=16.0.0<16.0.1.1
F5 Big-ip Ddos Hybrid Defender>=14.1.0<14.1.3.1
F5 Big-ip Ddos Hybrid Defender>=16.0.0<16.0.1.1
F5 Big-ip Domain Name System>=14.1.0<14.1.3.1
F5 Big-ip Domain Name System>=16.0.0<16.0.1.1
F5 Big-ip Fraud Protection Service>=14.1.0<14.1.3.1
F5 Big-ip Fraud Protection Service>=16.0.0<16.0.1.1
F5 Big-ip Global Traffic Manager>=14.1.0<14.1.3.1
F5 Big-ip Global Traffic Manager>=16.0.0<16.0.1.1
F5 Big-ip Link Controller>=14.1.0<14.1.3.1
F5 Big-ip Link Controller>=16.0.0<16.0.1.1
F5 Big-ip Local Traffic Manager>=14.1.0<14.1.3.1
F5 Big-ip Local Traffic Manager>=16.0.0<16.0.1.1
F5 Big-ip Policy Enforcement Manager>=14.1.0<14.1.3.1
F5 Big-ip Policy Enforcement Manager>=16.0.0<16.0.1.1
F5 Big-ip Ssl Orchestrator>=14.1.0<14.1.3.1
F5 Big-ip Ssl Orchestrator>=16.0.0<16.0.1.1

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    CVE-2021-22977

  • What is the severity of CVE-2021-22977?

    The severity of CVE-2021-22977 is high with a severity value of 7.5.

  • Which software versions are affected by CVE-2021-22977?

    CVE-2021-22977 affects BIG-IP versions 16.0.0-16.0.1 and 14.1.2.4-14.1.3.

  • How does CVE-2021-22977 manifest?

    Cooperation between malicious HTTP client code and a malicious server can cause TMM to restart and generate a core file.

  • How can I fix CVE-2021-22977?

    Update BIG-IP to version 16.0.1.1 or 14.1.3.1 or later to mitigate CVE-2021-22977.

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