FastStone Image Viewer Box-Average Downsampler FUN_0062d96c out-of-bounds

A vulnerability was identified in FastStone Image Viewer up to 8.5. Affected is the function FUN_0062d96c of the component Box-Average Downsampler Engine. The manipulation leads to out-of-bounds read. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

FastStone Image Viewer TGA Image FSViewer.exe out-of-bounds

A vulnerability was found in FastStone Image Viewer up to 8.3. This affects an unknown function of the file FSViewer.exe of the component TGA Image Handler. The manipulation results in out-of-bounds read. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

FastStone Image Viewer 1bpp RLE Decoder out-of-bounds write

A vulnerability has been found in FastStone Image Viewer up to 8.3. The impacted element is an unknown function of the component 1bpp RLE Decoder. The manipulation leads to out-of-bounds write. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

FastStone Image Viewer PCX Decoder out-of-bounds

A vulnerability was determined in FastStone Image Viewer up to 8.3. This impacts an unknown function of the component PCX Decoder. This manipulation causes out-of-bounds read. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

FastStone Image Viewer TGA Image out-of-bounds write

A flaw has been found in FastStone Image Viewer up to 8.3. The affected element is an unknown function of the component TGA Image Handler. Executing a manipulation can lead to out-of-bounds write. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Integer Overflow in FastStone Image Viewer PSD Parser Enables Remote Code Execution and DoS

An integer overflow in the PSD parser compnent of FastStone Image Viewer v8.3 allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via supplying a crafted PSD file.

Heap Overflow in FastStone Image Viewer v8.3 Enables Arbitrary Code Execution via Malicious JP2 File

A heap overflow in the FSViewer.exe process of FastStone Image Viewer v8.3 allows attackers to cause a execute arbitrary code in the context of the current process via supplying a crafted JPEG 2000 (JP2) file.

Integer overflow in FastStone Image Viewer 2.9 allows context-dependent attackers to cause a denial of service and possibly execute arbitrary code via a crafted BMP image, as demonstrated by wh3intof.bmp and wh4intof.bmp.

Stack-based buffer overflow in FastStone Image Viewer 2.8 allows user-assisted remote attackers to execute arbitrary code via a crafted JPG image.

FastStone Image Viewer 3.6 allows user-assisted attackers to cause a denial of service (application crash) via a malformed BMP image with large width and height values, possibly a related issue to CVE-2007-1942.

Directory traversal vulnerability in FastStone 4in1 Browser 1.2 allows remote attackers to read arbitrary files via a (1) ... (triple dot) or (2) ..\ (dot dot backslash) in the URL.

FastStone Image Viewer 6.2 has a "User Mode Write AV" issue, possibly related to the jpeg_mem_term function in jmemnobs.c in libjpeg. This issue can be triggered by a malformed JPEG file that is mishandled by FSViewer.exe. Attackers could exploit this issue for DoS (Access Violation) or possibly unspecified other impact.

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.

FastStone MaxView 3.0 and 3.1 allows user-assisted attackers to cause a denial of service (application crash) via a malformed BMP image with a crafted biSize field in the BITMAPINFOHEADER section.

FastStone Image Viewer PSD File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

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.

FastStone Image Viewer TGA File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

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.

FastStone Image Viewer GIF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

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.

Unsafe Parsing of a PNG tRNS chunk in FastStone Image Viewer through 7.5 results in a stack buffer overflow.

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.

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.