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F5 Networks BIG-IP : HTTP/2 Ping Flood vulnerability (K98053339)

high Nessus Plugin ID 129318

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Synopsis

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

Description

The version of F5 Networks BIG-IP installed on the remote host is prior to 11.6.5.1 / 12.1.5.1 / 13.1.3.2 / 14.0.1.1 / 14.1.2.1 / 15.0.1.1 / 15.1.0. It is, therefore, affected by a vulnerability as referenced in the K98053339 advisory.

 Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.(CVE-2019-9512)ImpactThe BIG-IP system may exhaust available resources and fail over to another system in the device group.

Tenable has extracted the preceding description block directly from the F5 Networks BIG-IP security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K98053339.

See Also

https://my.f5.com/manage/s/article/K98053339

Plugin Details

Severity: High

ID: 129318

File Name: f5_bigip_SOL98053339.nasl

Version: 1.10

Type: local

Published: 9/25/2019

Updated: 8/14/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2019-9512

CVSS v3

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: CVSS:3.0/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-2019-9512