high
7.5
CWE
401
Advisory Published
CVE Published
Updated

CVE-2023-40534: BIG-IP HTTP/2 vulnerability

First published: Tue Oct 10 2023(Updated: )

Undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate when a client-side HTTP/2 profile and the HTTP MRF Router option are enabled for a virtual server and an iRule using the HTTP_REQUEST event or Local Traffic Policy are associated with the virtual server. TMM can also terminate when a client-side HTTP/2 profile and the HTTP MRF Router option are enabled, regardless of the presence of the iRule.

Credit: f5sirt@f5.com f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 BIG-IP Access Policy Manager>=16.1.0<16.1.4.1
F5 BIG-IP Access Policy Manager=17.1.0
F5 BIG-IP Advanced Firewall Manager>=16.1.0<16.1.4.1
F5 BIG-IP Advanced Firewall Manager=17.1.0
F5 Big-ip Advanced Web Application Firewall>=16.1.0<16.1.4.1
F5 Big-ip Advanced Web Application Firewall=17.1.0
F5 BIG-IP Analytics>=16.1.0<16.1.4.1
F5 BIG-IP Analytics=17.1.0
F5 Big-ip Application Acceleration Manager>=16.1.0<16.1.4.1
F5 Big-ip Application Acceleration Manager=17.1.0
F5 BIG-IP Application Security Manager>=16.1.0<16.1.4.1
F5 BIG-IP Application Security Manager=17.1.0
F5 Big-ip Application Visibility And Reporting>=16.1.0<16.1.4.1
F5 Big-ip Application Visibility And Reporting=17.1.0
F5 Big-ip Carrier-grade Nat>=16.1.0<16.1.4.1
F5 Big-ip Carrier-grade Nat=17.1.0
F5 Big-ip Ddos Hybrid Defender>=16.1.0<16.1.4.1
F5 Big-ip Ddos Hybrid Defender=17.1.0
F5 Big-ip Domain Name System>=16.1.0<16.1.4.1
F5 Big-ip Domain Name System=17.1.0
F5 Big-ip Edge Gateway>=16.1.0<16.1.4.1
F5 Big-ip Edge Gateway=17.1.0
F5 Big-ip Fraud Protection Service>=16.1.0<16.1.4.1
F5 Big-ip Fraud Protection Service=17.1.0
F5 Big-ip Global Traffic Manager>=16.1.0<16.1.4.1
F5 Big-ip Global Traffic Manager=17.1.0
F5 Big-ip Link Controller>=16.1.0<16.1.4.1
F5 Big-ip Link Controller=17.1.0
F5 Big-ip Local Traffic Manager>=16.1.0<16.1.4.1
F5 Big-ip Local Traffic Manager=17.1.0
F5 Big-ip Next Service Proxy For Kubernetes>=1.6.0<=1.8.2
F5 Big-ip Policy Enforcement Manager>=16.1.0<16.1.4.1
F5 Big-ip Policy Enforcement Manager=17.1.0
F5 Big-ip Ssl Orchestrator>=16.1.0<16.1.4.1
F5 Big-ip Ssl Orchestrator=17.1.0
F5 Big-ip Webaccelerator>=16.1.0<16.1.4.1
F5 Big-ip Webaccelerator=17.1.0
F5 Big-ip Websafe>=16.1.0<16.1.4.1
F5 Big-ip Websafe=17.1.0
F5 BIG-IP Next SPK>=1.6.0<=1.8.2
F5 BIG-IP>=17.1.0<=17.1.1
17.1.1.1
F5 BIG-IP>=16.1.0<=16.1.4
16.1.4.2
F5 BIG-IP

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Reference Links

Frequently Asked Questions

  • What is CVE-2023-40534?

    CVE-2023-40534 is a vulnerability that can cause undisclosed requests to terminate TMM when a client-side HTTP/2 profile and HTTP MRF Router option are enabled for a virtual server with an associated iRule using the HTTP_REQUEST event or Local Traffic Policy.

  • Which software versions are affected by CVE-2023-40534?

    Software versions 16.1.0 to 16.1.4.1 and 17.1.0 of F5 BIG-IP Access Policy Manager, Advanced Firewall Manager, Advanced Web Application Firewall, Analytics, Application Acceleration Manager, Application Security Manager, Application Visibility and Reporting, Carrier-grade NAT, DDoS Hybrid Defender, Domain Name System, Edge Gateway, Fraud Protection Service, Global Traffic Manager, Link Controller, Local Traffic Manager, Next Service Proxy for Kubernetes, Policy Enforcement Manager, SSL Orchestrator, Webaccelerator, and Websafe are affected by CVE-2023-40534.

  • What is the severity of CVE-2023-40534?

    CVE-2023-40534 has a severity rating of 7.5 (high).

  • How can I fix CVE-2023-40534?

    To fix CVE-2023-40534, upgrade to a version higher than 16.1.4.1 or 17.1.0.

  • Where can I find more information about CVE-2023-40534?

    You can find more information about CVE-2023-40534 at the following link: [https://my.f5.com/manage/s/article/K000133467](https://my.f5.com/manage/s/article/K000133467)

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