CVE-2021-22976

published 2021-02-12

CVE-2021-22976: On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions…

Priority P3 38 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions, when the BIG-IP ASM system processes WebSocket requests with JSON payloads, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
f5	big-ip_advanced_waf	—	—
f5	big-ip_advanced_web_application_firewall	12.1.0 – 12.1.5	—
f5	big-ip_advanced_web_application_firewall	>= 13.1.0 < 13.1.3.6	13.1.3.6
f5	big-ip_advanced_web_application_firewall	>= 14.1.0 < 14.1.3.1	14.1.3.1
f5	big-ip_advanced_web_application_firewall	>= 15.1.0 < 15.1.2	15.1.2
f5	big-ip_advanced_web_application_firewall	>= 16.0.0 < 16.0.1.1	16.0.1.1
f5	big-ip_application_security_manager	12.1.0 – 12.1.5	—
f5	big-ip_application_security_manager	>= 13.1.0 < 13.1.3.6	13.1.3.6
f5	big-ip_application_security_manager	>= 14.1.0 < 14.1.3.1	14.1.3.1
f5	big-ip_application_security_manager	>= 15.1.0 < 15.1.2	15.1.2
f5	big-ip_application_security_manager	>= 16.0.0 < 16.0.1.1	16.0.1.1
f5	big-ip_asm	—	—

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P

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CWE-400