Faststone: >> Image Viewer Security Vulnerabilities
FastStone Image Viewer GIF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FastStone Image Viewer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of GIF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25145.
CVSS Score
7.8
EPSS Score
0.001
Published
2024-11-22
FastStone Image Viewer PSD File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FastStone Image Viewer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of PSD files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25102.
CVSS Score
7.8
EPSS Score
0.001
Published
2024-11-22
FastStone Image Viewer TGA File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FastStone Image Viewer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of TGA files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25140.
CVSS Score
7.8
EPSS Score
0.001
Published
2024-11-22
Unsafe Parsing of a PNG tRNS chunk in FastStone Image Viewer through 7.5 results in a stack buffer overflow.
CVSS Score
9.8
EPSS Score
0.017
Published
2022-08-18
FastStone Image Viewer <= 7.5 is affected by a user mode write access violation near NULL at 0x005bdfcb, triggered when a user opens or views a malformed CUR file that is mishandled by FSViewer.exe. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.
CVSS Score
7.8
EPSS Score
0.003
Published
2021-03-18
FastStone Image Viewer <= 7.5 is affected by a user mode write access violation at 0x00402d8a, triggered when a user opens or views a malformed CUR file that is mishandled by FSViewer.exe. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.
CVSS Score
7.8
EPSS Score
0.003
Published
2021-03-18
FastStone Image Viewer <= 7.5 is affected by a user mode write access violation near NULL at 0x005bdfc9, triggered when a user opens or views a malformed CUR file that is mishandled by FSViewer.exe. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.
CVSS Score
7.8
EPSS Score
0.003
Published
2021-03-18
FastStone Image Viewer <= 7.5 is affected by a user mode write access violation at 0x00402d7d, triggered when a user opens or views a malformed CUR file that is mishandled by FSViewer.exe. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.
CVSS Score
7.8
EPSS Score
0.002
Published
2021-03-18
FastStone Image Viewer v.<= 7.5 is affected by a Stack-based Buffer Overflow at 0x005BDF49, affecting the CUR file parsing functionality (BITMAPINFOHEADER Structure, 'BitCount' file format field), that will end up corrupting the Structure Exception Handler (SEH). Attackers could exploit this issue to achieve code execution when a user opens or views a malformed/specially crafted CUR file.
CVSS Score
7.8
EPSS Score
0.01
Published
2021-03-18
FastStone Image Viewer 7.5 has an out-of-bounds write (via a crafted image file) at FSViewer.exe+0x956e.
CVSS Score
5.5
EPSS Score
0.002
Published
2021-01-26
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