Google Chrome prior 66.0.3359.170 PDFium PDF File out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.4$5k-$25k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Google Chrome. The affected element is an unknown function of the component PDFium. Such manipulation as part of PDF File leads to out-of-bounds write. This vulnerability is listed as CVE-2018-6120. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Chrome (Web Browser) and classified as critical. Affected by this issue is an unknown functionality of the component PDFium. The manipulation as part of a PDF File leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An integer overflow that could lead to an attacker-controlled heap out-of-bounds write in PDFium in Google Chrome prior to 66.0.3359.170 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file.

The bug was discovered 05/10/2018. The weakness was presented 01/09/2019 with Qihoo 360 Vulcan Team (Website). The advisory is shared for download at debian.org. This vulnerability is handled as CVE-2018-6120 since 01/23/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/23/2023). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 109899 (Google Chrome < 66.0.3359.170 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176420 (Debian Security Update for chromium-browser (DSA 4237-1)).

Upgrading to version 66.0.3359.170 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 (109899) and SecurityFocus (BID 104143†). See VDB-128949, VDB-128950, VDB-128951 and VDB-128952 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109899
Nessus Name: Google Chrome < 66.0.3359.170 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53381
OpenVAS Name: Google Chrome Security Updates(stable-channel-update-for-desktop-2018-05)-Windows
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 66.0.3359.170

Timelineinfo

01/23/2018 🔍
05/10/2018 +107 days 🔍
05/10/2018 +0 days 🔍
05/10/2018 +0 days 🔍
05/17/2018 +7 days 🔍
01/09/2019 +237 days 🔍
01/09/2019 +0 days 🔍
01/10/2019 +1 days 🔍
06/23/2023 +1625 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: RHSA-2018:1446
Organization: Qihoo 360 Vulcan Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-6120 (🔍)
GCVE (CVE): GCVE-0-2018-6120
GCVE (VulDB): GCVE-100-128948

OVAL: 🔍

SecurityFocus: 104143 - Google Chrome Prior to 66.0.3359.170 Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 01/10/2019 21:30
Updated: 06/23/2023 16:36
Changes: 01/10/2019 21:30 (79), 04/28/2020 09:19 (4), 06/23/2023 16:36 (4)
Complete: 🔍
Cache ID: 216::103

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