High severity · published Jan 14, 2020
CVE-2020-5852
Undisclosed traffic patterns received may cause a disruption of service to the Traffic Management Microkernel (TMM)
7.5
CVSS
1.2%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Access Policy Manager · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BA
Big-ip Analytics · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BA
Big-ip Application Security Manager · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BD
Big-ip Domain Name System · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BE
Big-ip Edge Gateway · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BF
Big-ip Fraud Protection Service · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BL
Big-ip Link Controller · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.5.4.2.74.291; 12.1.4.1.0.97.6; 14.1.2.1.0.83.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-5852
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-5852
Vendor Advisory
https://support.f5.com/csp/article/K53590702
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