F5 BIG-IP up to 11.6.1/12.1.0/12.1.1/12.1.2/13.0.0 TMM Packet input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability has been found in F5 BIG-IP up to 11.6.1/12.1.0/12.1.1/12.1.2/13.0.0 (Firewall Software) and classified as problematic. Affected by this vulnerability is an unknown code block of the component TMM. The manipulation as part of a Packet leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and WebSafe software version 13.0.0, 12.1.0 - 12.1.2 and 11.5.1 - 11.6.1, an undisclosed sequence of packets, sourced from an adjacent network may cause TMM to crash.

The bug was discovered 12/21/2017. The weakness was presented 12/21/2017 (Website). It is possible to read the advisory at support.f5.com. This vulnerability is known as CVE-2017-6134 since 02/21/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 118605 (F5 Networks BIG-IP : TMM vulnerability (K37404773)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l.

Proper firewalling of is able to address this issue. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (118605).







CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Input validation

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 118605
Nessus Name: F5 Networks BIG-IP : TMM vulnerability (K37404773)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Firewall
Status: 🔍

0-Day Time: 🔍


02/21/2017 🔍
12/20/2017 +302 days 🔍
12/20/2017 +0 days 🔍
12/21/2017 +1 days 🔍
12/21/2017 +0 days 🔍
12/21/2017 +0 days 🔍
12/22/2017 +1 days 🔍
11/02/2018 +315 days 🔍
01/18/2023 +1538 days 🔍


Vendor: f5.com

Advisory: K37404773
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6134 (🔍)
SecurityTracker: 1040044
SecurityFocus: 102466 - Multiple F5 BIG-IP Products CVE-2017-6134 Remote Denial of Service Vulnerability


Created: 12/22/2017 08:16 AM
Updated: 01/18/2023 05:35 PM
Changes: 12/22/2017 08:16 AM (64), 02/22/2020 03:29 PM (9), 01/27/2021 06:02 PM (3), 01/18/2023 05:35 PM (2)
Complete: 🔍
Cache ID: 34:92A:40


No comments yet. Languages: en.

Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!