FastStone Image Viewer 7.5 Image File FSViewer.exe out-of-bounds write
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, was found in FastStone Image Viewer 7.5. This vulnerability affects unknown code of the file FSViewer.exe of the component Image File Handler. Executing a manipulation can lead to out-of-bounds write. This vulnerability appears as CVE-2020-35844. The attack may be performed from remote. There is no available exploit.
Details
A vulnerability classified as critical was found in FastStone Image Viewer 7.5. This vulnerability affects some unknown functionality of the file FSViewer.exe of the component Image File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was presented 01/27/2021. The advisory is shared for download at github.com. This vulnerability was named CVE-2020-35844. 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.
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Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.0VulDB Meta Temp Score: 7.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Out-of-bounds writeCWE: CWE-787 / 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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/30/2020 🔍01/27/2021 🔍
01/27/2021 🔍
02/19/2021 🔍
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2020-35844 (🔍)
GCVE (CVE): GCVE-0-2020-35844
GCVE (VulDB): GCVE-100-168688
Entry
Created: 01/27/2021 09:04Updated: 02/19/2021 22:34
Changes: 01/27/2021 09:04 (37), 02/19/2021 22:31 (2), 02/19/2021 22:34 (18)
Complete: 🔍
Cache ID: 216::103
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