Google Chrome prior 70.0.3538.67 Blink HTMLImportsController HTML Page use after free

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 classified as critical has been found in Google Chrome (Web Browser). This affects the function HTMLImportsController of the component Blink. The manipulation as part of a HTML Page leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 10/16/2018. The weakness was shared 11/14/2018 by Samuel Gross (xisigr) (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2018-17474 since 09/25/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/06/2023). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 118373 (RHEL 6 : chromium-browser (RHSA-2018:3004)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176520 (Debian Security Update for chromium-browser (DSA 4330-1)).

Upgrading to version 70.0.3538.67 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (118373). The entries 126808, 126809, 126810 and 126811 are related to this item.






  • free

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍



VulDB Base Score: 🔍
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NVD Base Score: 🔍


Class: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 118373
Nessus Name: RHEL 6 : chromium-browser (RHSA-2018:3004)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 70.0.3538.67


09/25/2018 🔍
10/16/2018 +21 days 🔍
10/16/2018 +0 days 🔍
10/24/2018 +8 days 🔍
10/25/2018 +1 days 🔍
11/14/2018 +20 days 🔍
11/14/2018 +0 days 🔍
11/15/2018 +1 days 🔍
06/06/2023 +1664 days 🔍



Advisory: RHSA-2018:3004
Researcher: Samuel Gross (xisigr)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-17474 (🔍)

SecurityFocus: 105666 - Google Chrome Prior to 70.0.3538.67 Multiple Security Vulnerabilities

See also: 🔍


Created: 11/15/2018 07:52 AM
Updated: 06/06/2023 01:06 PM
Changes: 11/15/2018 07:52 AM (78), 04/12/2020 06:19 PM (6), 06/06/2023 01:06 PM (4)
Complete: 🔍


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