Traffic Management Microkernel Issue in F5 BIG-IP Products
CVE-2020-5942

7.5HIGH

Key Information:

Vendor

F5
Status
Big-ip (pem)
Vendor
CVE Published:
5 November 2020

What is CVE-2020-5942?

In specific versions of F5 BIG-IP PEM, a vulnerability exists where the Traffic Management Microkernel (TMM) fails to handle Capabilities-Exchange-Answer (CEA) packets correctly. This flaw can result in the generation of a core file, forcing the TMM to restart. The issue arises when TMM processes certain attributes sent by the Policy and Charging Rules Function (PCRF) server, potentially disrupting service and stability in affected systems.

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Affected Version(s)

BIG-IP (PEM) 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.2.7, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, 11.6.1-11.6.5.2

References

https://support.f5.com/csp/article/K82530456
x_refsource_MISC

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

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