CVEvulnerability

CVE-2020-5871

7.5 HIGH Published 2020-04-30 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-04-30
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 BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue. There is no control-plane exposure.

Affected configurations

• f5 big-ip access policy manager (>= 14.1.0 <= 14.1.2.3) • f5 big-ip advanced firewall manager (>= 14.1.0 <= 14.1.2.3) • f5 big-ip analytics (>= 14.1.0 <= 14.1.2.3) • f5 big-ip application acceleration manager (>= 14.1.0 <= 14.1.2.3) • f5 big-ip application security manager (>= 14.1.0 <= 14.1.2.3) • f5 big-ip domain name system (>= 14.1.0 <= 14.1.2.3) • f5 big-ip fraud protection service (>= 14.1.0 <= 14.1.2.3) • f5 big-ip global traffic manager (>= 14.1.0 <= 14.1.2.3) • f5 big-ip link controller (>= 14.1.0 <= 14.1.2.3) • f5 big-ip local traffic manager (>= 14.1.0 <= 14.1.2.3) • f5 big-ip policy enforcement manager (>= 14.1.0 <= 14.1.2.3)

References