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CVE-2021-23051

HIGHCVSS 7.5/10EPSS 0.93%

Last modified

CVE-2021-23051 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On BIG-IP versions 15.1.0.4 through 15.1.3, when the Data Plane Development Kit (DPDK)/Elastic Network Adapter (ENA) driver is used with BIG-IP on Amazon Web Services (AWS) systems, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. This is due to an incomplete fix for CVE-2020-5862. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

On BIG-IP versions 15.1.0.4 through 15.1.3, when the Data Plane Development Kit (DPDK)/Elastic Network Adapter (ENA) driver is used with BIG-IP on Amazon Web Services (AWS) systems, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. This is due to an incomplete fix for CVE-2020-5862. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.93%

56.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Advanced Firewall Manager>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Advanced Web Application Firewall>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Analytics>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Application Acceleration Manager>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Application Security Manager>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Domain Name System>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Fraud Protection Service>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Global Traffic Manager>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Link Controller>= 15.1.0.4, < 15.1.3.1
F5Big-Ip Local Traffic Manager>= 15.1.0.4, < 15.1.3.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-23051?
On BIG-IP versions 15.1.0.4 through 15.1.3, when the Data Plane Development Kit (DPDK)/Elastic Network Adapter (ENA) driver is used with BIG-IP on Amazon Web Services (AWS) systems, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. This is due to an incomplete fix for CVE-2020-5862. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
How severe is CVE-2021-23051?
CVE-2021-23051 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.
How do I fix CVE-2021-23051?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-23051?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST