VDB-103148 · CVE-2017-8785 · GCVE-0-2017-8785

FastStone Image Viewer 6.2 JPEG 2000 File FSViewer.exe Access Violation memory corruption

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.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in FastStone Image Viewer 6.2. Affected by this issue is some unknown functionality of the file FSViewer.exe of the component JPEG 2000 File Handler. Such manipulation leads to memory corruption (Access Violation). This vulnerability is listed as CVE-2017-8785. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in FastStone Image Viewer 6.2. It has been rated as critical. Affected by this issue is an unknown part of the file FSViewer.exe of the component JPEG 2000 File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability (Access Violation). Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

FastStone Image Viewer 6.2 has a "Data from Faulting Address may be used as a return value" issue. This issue can be triggered by a malformed JPEG 2000 file that is mishandled by FSViewer.exe. Attackers could exploit this issue for DoS (Access Violation) or possibly unspecified other impact.

The bug was discovered 07/05/2017. The weakness was presented 07/05/2017 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2017-8785 since 05/04/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-103150 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

FastStone

Name

Image Viewer

Version

License

free

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Name: Access Violation
Class: Memory corruption / Access Violation
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/04/2017 🔍
07/05/2017 +62 days 🔍
07/05/2017 +0 days 🔍
07/05/2017 +0 days 🔍
07/06/2017 +1 days 🔍
10/22/2019 +838 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-8785 (🔍)
GCVE (CVE): GCVE-0-2017-8785
GCVE (VulDB): GCVE-100-103148
See also: 🔍

Entryinfo

Created: 07/06/2017 11:01
Updated: 10/22/2019 19:03
Changes: 07/06/2017 11:01 (59), 10/22/2019 19:03 (1)
Complete: 🔍
Cache ID: 216::103