Traffic Management Microkernel Vulnerability in F5 BIG-IP Product
CVE-2019-6619

7.5HIGH

Key Information:

Vendor
F5
Status
Big-ip (ltm, Aam, Afm, Apm, Asm, Link Controller, Pem, Webaccelerator)
Vendor
CVE Published:
3 May 2019

Summary

The Traffic Management Microkernel (TMM) in certain F5 BIG-IP versions is prone to unexpected restarts when handling HTTP/2 traffic with Application Layer Protocol Negotiation (ALPN) settings that include a zero-sized extension. This could lead to service disruptions affecting network availability.

Affected Version(s)

BIG-IP (LTM, AAM, AFM, APM, ASM, Link Controller, PEM, WebAccelerator) 14.0.0-14.1.0.1

BIG-IP (LTM, AAM, AFM, APM, ASM, Link Controller, PEM, WebAccelerator) 13.0.0-13.1.1.4

BIG-IP (LTM, AAM, AFM, APM, ASM, Link Controller, PEM, WebAccelerator) 12.1.0-12.1.4

References

https://support.f5.com/csp/article/K94563344
x_refsource_CONFIRM
http://www.securityfocus.com/bid/108190
vdb-entryx_refsource_BID

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

.