CVE-2021-22977: High severity F5 BIG-IP Access Policy Manager vulnerability

Published 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.

Affected Software

28 affected components
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

Event History

Feb 12, 2021
CVE Published
via MITRE·07:23 PM
Data Sourced
via MITRE·07:23 PM
DescriptionWeakness

Frequently Asked Questions

1

What is the vulnerability ID of this vulnerability?

CVE-2021-22977

2

What is the severity of CVE-2021-22977?

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

3

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.

4

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.

5

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.

Contact

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