CVEvulnerability

CVE-2021-22999

7.5 HIGH Published 2021-03-31 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-03-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P

Description

On versions 15.0.x before 15.1.0 and 14.1.x before 14.1.4, the BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Affected configurations

• f5 big-ip access policy manager (>= 14.1.0 < 14.1.4) • f5 big-ip access policy manager (>= 15.0.0 < 15.1.0) • f5 big-ip advanced firewall manager (>= 14.1.0 < 14.1.4) • f5 big-ip advanced firewall manager (>= 15.0.0 < 15.1.0) • f5 big-ip advanced web application firewall (>= 14.1.0 < 14.1.4) • f5 big-ip advanced web application firewall (>= 15.0.0 < 15.1.0) • f5 big-ip analytics (>= 14.1.0 < 14.1.4) • f5 big-ip analytics (>= 15.0.0 < 15.1.0) • f5 big-ip application acceleration manager (>= 14.1.0 < 14.1.4) • f5 big-ip application acceleration manager (>= 15.0.0 < 15.1.0) • f5 big-ip application security manager (>= 14.1.0 < 14.1.4) • f5 big-ip application security manager (>= 15.0.0 < 15.1.0) • f5 big-ip ddos hybrid defender (>= 14.1.0 < 14.1.4) • f5 big-ip ddos hybrid defender (>= 15.0.0 < 15.1.0) • f5 big-ip domain name system (>= 14.1.0 < 14.1.4) • f5 big-ip domain name system (>= 15.0.0 < 15.1.0) • f5 big-ip fraud protection service (>= 14.1.0 < 14.1.4) • f5 big-ip fraud protection service (>= 15.0.0 < 15.1.0) • f5 big-ip global traffic manager (>= 14.1.0 < 14.1.4) • f5 big-ip global traffic manager (>= 15.0.0 < 15.1.0) • f5 big-ip link controller (>= 14.1.0 < 14.1.4) • f5 big-ip link controller (>= 15.0.0 < 15.1.0) • f5 big-ip local traffic manager (>= 14.1.0 < 14.1.4) • f5 big-ip local traffic manager (>= 15.0.0 < 15.1.0) • f5 big-ip policy enforcement manager (>= 14.1.0 < 14.1.4) • f5 big-ip policy enforcement manager (>= 15.0.0 < 15.1.0) • f5 ssl orchestrator (>= 14.1.0 < 14.1.4) • f5 ssl orchestrator (>= 15.0.0 < 15.1.0)

References