Google Chrome up to 59 Blink 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 (≈)
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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.
7.4$5k-$25k0.00

A vulnerability was found in Google Chrome up to 59 (Web Browser). It has been classified as critical. This affects some unknown processing 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 summary by CVE is:

A use after free in Blink in Google Chrome prior to 59.0.3071.104 for Mac, Windows, and Linux, and 59.0.3071.117 for Android, allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page, aka an IndexedDB sandbox escape.

The bug was discovered 06/15/2017. The weakness was released 10/27/2017 by Michal Bentkowski with Tencent (Website). The advisory is shared at security.gentoo.org. This vulnerability is uniquely identified as CVE-2017-5087 since 01/02/2017. 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. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/05/2023). 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 50 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 102210 (Debian DSA-3926-1 : chromium-browser - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176105 (Debian Security Update for chromium-browser (DSA 3926-1)).

Upgrading to version 59.0.3071.104 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 databases at Tenable (102210) and SecurityFocus (BID 99096†).

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

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: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102210
Nessus Name: Debian DSA-3926-1 : chromium-browser - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703926
OpenVAS Name: Debian Security Advisory DSA 3926-1 (chromium-browser - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 59.0.3071.104

Timelineinfo

01/02/2017 🔍
06/15/2017 +164 days 🔍
06/15/2017 +0 days 🔍
08/04/2017 +50 days 🔍
08/07/2017 +3 days 🔍
10/27/2017 +81 days 🔍
10/27/2017 +0 days 🔍
10/27/2017 +0 days 🔍
01/05/2023 +1896 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: RHSA-2017:1495
Researcher: Michal Bentkowski
Organization: Tencent
Status: Not defined

CVE: CVE-2017-5087 (🔍)
OVAL: 🔍

SecurityFocus: 99096 - Google Chrome Multiple Security Vulnerabilities
SecurityTracker: 1038765

Entryinfo

Created: 10/27/2017 07:53 PM
Updated: 01/05/2023 07:01 AM
Changes: 10/27/2017 07:53 PM (83), 12/01/2019 09:38 AM (2), 01/20/2021 09:20 PM (2), 01/05/2023 07:01 AM (3)
Complete: 🔍
Cache ID: 98:0AB:40

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