CVE-2020-27718

published 2020-12-24

CVE-2020-27718: When a BIG-IP ASM or Advanced WAF system running version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6.1-11.6.5.2…

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

When a BIG-IP ASM or Advanced WAF system running version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6.1-11.6.5.2 processes requests with JSON payload, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.

Affected

14 ranges

Vendor	Product	Version range	Fixed in
f5	big-ip_advanced_waf	—	—
f5	big-ip_advanced_web_application_firewall	11.6.1 – 11.6.5	—
f5	big-ip_advanced_web_application_firewall	12.1.0 – 12.1.5	—
f5	big-ip_advanced_web_application_firewall	>= 13.1.0 < 13.1.3.5	13.1.3.5
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	>= 15.0.0 < 15.1.1	15.1.1
f5	big-ip_advanced_web_application_firewall	>= 16.0.0 < 16.0.1	16.0.1
f5	big-ip_application_security_manager	11.6.1 – 11.6.5	—
f5	big-ip_application_security_manager	12.1.0 – 12.1.5	—
f5	big-ip_application_security_manager	>= 13.1.0 < 13.1.3.5	13.1.3.5
f5	big-ip_application_security_manager	>= 14.1.0 < 14.1.3.1	14.1.3.1
f5	big-ip_application_security_manager	>= 15.0.0 < 15.1.1	15.1.1
f5	big-ip_application_security_manager	>= 16.0.0 < 16.0.1	16.0.1
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