F5 Networks BIG-IP : HTTP/2 Reset Flood vulnerability (K01988340) (Reset Flood)

high Nessus Plugin ID 129308


The remote device is missing a vendor-supplied security patch.


Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both. (CVE-2019-9514)


The BIG-IP system may exhaust available resources and fail over to another system in the device group.


Upgrade to one of the non-vulnerable versions listed in the F5 Solution K01988340.

See Also


Plugin Details

Severity: High

ID: 129308

File Name: f5_bigip_SOL01988340.nasl

Version: 1.8

Type: local

Published: 9/25/2019

Updated: 12/6/2022

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:f5:big-ip_local_traffic_manager, cpe:/h:f5:big-ip

Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Exploit Ease: No known exploits are available

Patch Publication Date: 8/19/2019

Vulnerability Publication Date: 8/13/2019

Reference Information

CVE: CVE-2019-9514

CEA-ID: CEA-2019-0643