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CVE-2020-5852

HIGHCVSS 7.5/10EPSS 1.20%

Last modified

CVE-2020-5852 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Undisclosed traffic patterns received may cause a disruption of service to the Traffic Management Microkernel (TMM). This vulnerability affects TMM through a virtual server configured with a FastL4 profile. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

Description

Undisclosed traffic patterns received may cause a disruption of service to the Traffic Management Microkernel (TMM). This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. This issue only impacts specific engineering hotfixes. NOTE: This vulnerability does not affect any of the BIG-IP major, minor or maintenance releases you obtained from downloads.f5.com. The affected Engineering Hotfix builds are as follows: Hotfix-BIGIP-14.1.2.1.0.83.4-ENG Hotfix-BIGIP-12.1.4.1.0.97.6-ENG Hotfix-BIGIP-11.5.4.2.74.291-HF2

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
1.20%

64.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
F5Big-Ip Local Traffic Manager11.5.4.2.74.291
F5Big-Ip Local Traffic Manager12.1.4.1.0.97.6
F5Big-Ip Local Traffic Manager14.1.2.1.0.83.4
F5Big-Ip Advanced Firewall Manager11.5.4.2.74.291
F5Big-Ip Advanced Firewall Manager12.1.4.1.0.97.6
F5Big-Ip Advanced Firewall Manager14.1.2.1.0.83.4
F5Big-Ip Application Acceleration Manager11.5.4.2.74.291
F5Big-Ip Application Acceleration Manager12.1.4.1.0.97.6
F5Big-Ip Application Acceleration Manager14.1.2.1.0.83.4
F5Big-Ip Analytics11.5.4.2.74.291
F5Big-Ip Analytics12.1.4.1.0.97.6
F5Big-Ip Analytics14.1.2.1.0.83.4
F5Big-Ip Access Policy Manager11.5.4.2.74.291
F5Big-Ip Access Policy Manager12.1.4.1.0.97.6
F5Big-Ip Access Policy Manager14.1.2.1.0.83.4
F5Big-Ip Application Security Manager11.5.4.2.74.291
F5Big-Ip Application Security Manager12.1.4.1.0.97.6
F5Big-Ip Application Security Manager14.1.2.1.0.83.4
F5Big-Ip Edge Gateway11.5.4.2.74.291
F5Big-Ip Edge Gateway12.1.4.1.0.97.6
F5Big-Ip Edge Gateway14.1.2.1.0.83.4
F5Big-Ip Fraud Protection Service11.5.4.2.74.291
F5Big-Ip Fraud Protection Service12.1.4.1.0.97.6
F5Big-Ip Fraud Protection Service14.1.2.1.0.83.4
F5Big-Ip Global Traffic Manager11.5.4.2.74.291
F5Big-Ip Global Traffic Manager12.1.4.1.0.97.6
F5Big-Ip Global Traffic Manager14.1.2.1.0.83.4
F5Big-Ip Link Controller11.5.4.2.74.291
F5Big-Ip Link Controller12.1.4.1.0.97.6
F5Big-Ip Link Controller14.1.2.1.0.83.4
F5Big-Ip Policy Enforcement Manager11.5.4.2.74.291
F5Big-Ip Policy Enforcement Manager12.1.4.1.0.97.6
F5Big-Ip Policy Enforcement Manager14.1.2.1.0.83.4
F5Big-Ip Webaccelerator11.5.4.2.74.291
F5Big-Ip Webaccelerator12.1.4.1.0.97.6
F5Big-Ip Webaccelerator14.1.2.1.0.83.4
F5Big-Ip Domain Name System11.5.4.2.74.291
F5Big-Ip Domain Name System12.1.4.1.0.97.6
F5Big-Ip Domain Name System14.1.2.1.0.83.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-5852?
Undisclosed traffic patterns received may cause a disruption of service to the Traffic Management Microkernel (TMM). This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. This issue only impacts specific engineering hotfixes. NOTE: This vulnerability does not affect any of the BIG-IP major, minor or maintenance releases you obtained from downloads.f5.com. The affected Engineering Hotfix builds are as follows: Hotfix-BIGIP-14.1.2.1.0.83.4-ENG Hotfix-BIGIP-12.1.4.1.0.97.6-ENG Hotfix-BIGIP-11.5.4.2.74.291-HF2
How severe is CVE-2020-5852?
CVE-2020-5852 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5852?
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-2020-5852?

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

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Source: NVD / NIST