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MEDIUM · 6.5

CVE-2020-5938

On BIG-IP 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when negotiating IPSec tunnels with configured, authenticated peers, the peer may negotiate a different key length than the BIG-IP conf...

Vulnerability Description

On BIG-IP 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when negotiating IPSec tunnels with configured, authenticated peers, the peer may negotiate a different key length than the BIG-IP configuration would otherwise allow.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
F5Big-Ip Access Policy Manager>= 11.6.1, <= 11.6.5.2
F5Big-Ip Advanced Firewall Manager>= 11.6.1, <= 11.6.5.2
F5Big-Ip Advanced Web Application Firewall>= 11.6.1, <= 11.6.5.2
F5Big-Ip Analytics>= 11.6.1, <= 11.6.5.2
F5Big-Ip Application Acceleration Manager>= 11.6.1, <= 11.6.5.2
F5Big-Ip Application Security Manager>= 11.6.1, <= 11.6.5.2
F5Big-Ip Ddos Hybrid Defender>= 11.6.1, <= 11.6.5.2
F5Big-Ip Domain Name System>= 11.6.1, <= 11.6.5.2
F5Big-Ip Fraud Protection Service>= 11.6.1, <= 11.6.5.2
F5Big-Ip Global Traffic Manager>= 11.6.1, <= 11.6.5.2
F5Big-Ip Link Controller>= 11.6.1, <= 11.6.5.2
F5Big-Ip Local Traffic Manager>= 11.6.1, <= 11.6.5.2
F5Big-Ip Policy Enforcement Manager>= 11.6.1, <= 11.6.5.2
F5Ssl Orchestrator>= 11.6.1, <= 11.6.5.2

Related Weaknesses (CWE)

CWE-326

References

FAQ

What is CVE-2020-5938?

CVE-2020-5938 is a vulnerability with a CVSS score of 6.5 (MEDIUM). On BIG-IP 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when negotiating IPSec tunnels with configured, authenticated peers, the peer may negotiate a different key length than the BIG-IP conf...

How severe is CVE-2020-5938?

CVE-2020-5938 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-5938?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager.