FastStone Image Viewer 6.2 User Mode FSViewer.exe JPEG File memory corruption
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.5 | $0-$5k | 0.00 |
Summary
A vulnerability marked as critical has been reported in FastStone Image Viewer 6.2. The affected element is an unknown function of the file FSViewer.exe of the component User Mode. Performing a manipulation as part of JPEG File results in memory corruption. This vulnerability is reported as CVE-2018-11702. The attack requires a local approach. No exploit exists.
Details
A vulnerability was found in FastStone Image Viewer 6.2. It has been classified as critical. This affects an unknown code of the file FSViewer.exe of the component User Mode. The manipulation as part of a JPEG File leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
FastStone Image Viewer 6.2 has a User Mode Write AV at 0x00578cb3, triggered when the user opens a malformed JPEG 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 06/19/2018. The weakness was disclosed 06/20/2018 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2018-11702 since 06/04/2018. 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. Technical details are known, but no exploit is available.
The commercial vulnerability scanner Qualys is able to test this issue with plugin 371016 (FastStone Image Viewer Multiple Vulnerabilities).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The entries VDB-119696, VDB-119698, VDB-119699 and VDB-119700 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB 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: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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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: Memory corruptionCWE: 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 |
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| Today | Unlock | Unlock | Unlock | Unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
Timeline
06/04/2018 🔍06/19/2018 🔍
06/19/2018 🔍
06/20/2018 🔍
06/20/2018 🔍
02/20/2020 🔍
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2018-11702 (🔍)
GCVE (CVE): GCVE-0-2018-11702
GCVE (VulDB): GCVE-100-119697
See also: 🔍
Entry
Created: 06/20/2018 13:37Updated: 02/20/2020 14:53
Changes: 06/20/2018 13:37 (61), 02/20/2020 14:53 (1)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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