HIGH 8.2
GHSA-vhqj-f5cj-9x8h
ImageMagick has heap-buffer-overflow via signed integer overflow in WriteUHDRImage when writing UHDR images with large dimensions
Details
`WriteUHDRImage` in `coders/uhdr.c` uses `int` arithmetic to compute the pixel buffer size. When image dimensions are large, the multiplication overflows 32-bit `int`, causing an undersized heap allocation followed by an out-of-bounds write. This can crash the process or potentially lead to an out of bounds heap write. ``` ==1575126==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7fc382ef3820 at pc 0x5560d31f229f bp 0x7ffe865f9530 sp 0x7ffe865f9520 WRITE of size 8 at 0x7fc382ef3820 thread T0 #0 0x5560d31f229e in WriteUHDRImage coders/uhdr.c:807 ```
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Affected packages
NuGet / Magick.NET-Q16-AnyCPU
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.3 NuGet / Magick.NET-Q16-HDRI-AnyCPU
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.3 NuGet / Magick.NET-Q16-HDRI-OpenMP-arm64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.3 NuGet / Magick.NET-Q16-HDRI-OpenMP-x64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.3 NuGet / Magick.NET-Q16-HDRI-arm64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.3 NuGet / Magick.NET-Q16-HDRI-x64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.3 NuGet / Magick.NET-Q16-HDRI-x86
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.3 NuGet / Magick.NET-Q16-OpenMP-arm64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.10.3 NuGet / Magick.NET-Q16-OpenMP-x64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.10.3 NuGet / Magick.NET-Q16-OpenMP-x86
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-OpenMP-x86 --version 14.10.3 NuGet / Magick.NET-Q16-arm64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-arm64 --version 14.10.3 NuGet / Magick.NET-Q16-x64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-x64 --version 14.10.3 NuGet / Magick.NET-Q16-x86
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q16-x86 --version 14.10.3 NuGet / Magick.NET-Q8-AnyCPU
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q8-AnyCPU --version 14.10.3 NuGet / Magick.NET-Q8-OpenMP-arm64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.10.3 NuGet / Magick.NET-Q8-OpenMP-x64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.10.3 NuGet / Magick.NET-Q8-arm64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q8-arm64 --version 14.10.3 NuGet / Magick.NET-Q8-x64
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q8-x64 --version 14.10.3 NuGet / Magick.NET-Q8-x86
Introduced in:
0 Fixed in: 14.10.3 Fix
dotnet add package Magick.NET-Q8-x86 --version 14.10.3 References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-vhqj-f5cj-9x8h [WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-25794 [ADVISORY]
- https://github.com/ImageMagick/ImageMagick/commit/ffe589df5ff8ce1433daa4ccb0d2a9fadfbe30ed [WEB]
- https://github.com/ImageMagick/ImageMagick [PACKAGE]
- https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3 [WEB]