F5 Networks BIG-IP : cURL vulnerability (K41523201)

critical Nessus Plugin ID 149070

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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 13.1.4.1 / 14.1.4.2 / 15.1.4 / 16.0.1.2 / 16.1.0. It is, therefore, affected by a vulnerability as referenced in the K41523201 advisory.

Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3.(CVE-2019-5482)ImpactAn attacker could cause a denial of service (DoS) or arbitrary code execution if you use cURL to transfer data to or from a Trivial File Transport Protocol (TFTP) server and set theblksize(block size) option to a value below 504 (the default value is 512). Setting a smaller block size than the default should be rare as the primary use case for changing the block size is to make it larger.

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 K41523201.

Plugin Details

Severity: Critical

ID: 149070

File Name: f5_bigip_SOL41523201.nasl

Version: 1.9

Type: local

Family: F5 Networks Local Security Checks

Published: 4/29/2021

Updated: 8/15/2025

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2019-5482

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_application_visibility_and_reporting, cpe:/a:f5:big-ip_domain_name_system, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/h:f5:big-ip, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_application_acceleration_manager, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_application_security_manager

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/22/2020

Vulnerability Publication Date: 9/16/2019

Reference Information

CVE: CVE-2019-5482

Detections

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