Google Chrome prior 62.0.3202.62 PDFium PDF File use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Google Chrome. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component PDFium. Performing a manipulation as part of PDF File results in use after free. This vulnerability is cataloged as CVE-2017-5127. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Google Chrome (Web Browser). This affects an unknown function of the component PDFium. The manipulation as part of a PDF File 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:

Use after free in PDFium in Google Chrome prior to 62.0.3202.62 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file.

The bug was discovered 10/17/2017. The weakness was shared 02/07/2018 by Kushal Arvind Shah (xisigr) with Fortinet's FortiGuard Labs (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2017-5127 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. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/06/2023). 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 4 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 104063 (FreeBSD : chromium -- multiple vulnerabilities (a692bffe-b6ad-11e7-a1c2-e8e0b747a45a)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236535 (Red Hat Update for chromium-browser (RHSA-2017:2997)).

Upgrading to version 62.0.3202.62 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 (104063) and SecurityFocus (BID 101482†). The entries VDB-112940, VDB-112941, VDB-112942 and VDB-112943 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

Name

License

Website

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: Use after free
CWE: CWE-416 / 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: 104063
Nessus Name: FreeBSD : chromium -- multiple vulnerabilities (a692bffe-b6ad-11e7-a1c2-e8e0b747a45a)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800562
OpenVAS Name: Google Chrome Security Updates(stable-channel-update-for-desktop-2017-10)-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 62.0.3202.62

Timelineinfo

01/02/2017 🔍
10/17/2017 +288 days 🔍
10/18/2017 +1 days 🔍
10/21/2017 +3 days 🔍
10/23/2017 +2 days 🔍
02/07/2018 +107 days 🔍
02/07/2018 +0 days 🔍
02/08/2018 +1 days 🔍
02/06/2023 +1824 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: RHSA-2017:2997⛔
Researcher: Kushal Arvind Shah (xisigr)
Organization: Fortinet's FortiGuard Labs
Status: Not defined

CVE: CVE-2017-5127 (🔍)
GCVE (CVE): GCVE-0-2017-5127
GCVE (VulDB): GCVE-100-112959

OVAL: 🔍

SecurityFocus: 101482 - Google Chrome Prior to 62.0.3202.62 Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 02/08/2018 07:02
Updated: 02/06/2023 08:05
Changes: 02/08/2018 07:02 (78), 01/02/2020 15:51 (7), 02/06/2023 08:05 (4)
Complete: 🔍
Cache ID: 216::103

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