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

7.5HIGH

Key Information:

Vendor

F5
Status
Big-ip
Big-ip Next Spk
Vendor
CVE Published:
10 October 2023

What is CVE-2023-40534?

A vulnerability exists in F5 BIG-IP when a client's HTTP/2 profile and HTTP MRF Router option are enabled on a virtual server. If an iRule configured with the HTTP_REQUEST event or a Local Traffic Policy is associated with this virtual server, certain undisclosed requests may lead to the termination of the Traffic Management Microkernel (TMM). This issue emphasizes the need for vigilant monitoring and management of configurations to prevent service interruptions.

Affected Version(s)

BIG-IP 17.1.0 < 17.1.0.3.0.23.4-ENG

BIG-IP 16.1.0 < 16.1.4.1.0.13.5-ENG

BIG-IP Next SPK 1.6.0

References

https://my.f5.com/manage/s/article/K000133467
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

F5
.