Resource exhaustion in F5 Networks products - CVE-2021-23004
Published: March 11, 2021
Vulnerability identifier: #VU51418
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-23004
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing multipath TCP (MPTCP) forwarding flows on standard virtual servers without MPTCP enabled in the applied TCP profile. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
BIG-IP APM
BIG-IP AFM
BIG-IP GTM
BIG-IP PEM
BIG-IP Analytics
BIG-IP ASM
BIG-IP LTM
BIG-IP FPS
BIG-IP Advanced WAF
BIG-IP AAM
BIG-IP DNS
BIG-IP Link Controller
BIG-IP SSLO
BIG-IP
BIG-IP DDHD
BIG-IP AFM
BIG-IP GTM
BIG-IP PEM
BIG-IP Analytics
BIG-IP ASM
BIG-IP LTM
BIG-IP FPS
BIG-IP Advanced WAF
BIG-IP AAM
BIG-IP DNS
BIG-IP Link Controller
BIG-IP SSLO
BIG-IP
BIG-IP DDHD
How to mitigate CVE-2021-23004
Install updates from vendor's website.
BIG-IP APM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP Advanced WAF - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP AFM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP AAM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP DNS - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP SSLO - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP GTM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP PEM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP Analytics - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP ASM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP LTM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP Link Controller - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP FPS - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP DDHD - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP Advanced WAF - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP AFM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP AAM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP DNS - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP SSLO - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP GTM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP PEM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP Analytics - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP ASM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP LTM - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP Link Controller - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP FPS - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1
BIG-IP DDHD - addressed in versions 11.6.5.3, 12.1.5.3, 13.1.3.6, 14.1.3.1, 15.1.2, 16.0.1.1