VYPR
Low severityNVD Advisory· Published Sep 5, 2025· Updated Nov 3, 2025

ImageMagick BlobStream Forward-Seek Under-Allocation

CVE-2025-57807

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. ImageMagick versions lower than 14.8.2 include insecure functions: SeekBlob(), which permits advancing the stream offset beyond the current end without increasing capacity, and WriteBlob(), which then expands by quantum + length (amortized) instead of offset + length, and copies to data + offset. When offset ≫ extent, the copy targets memory beyond the allocation, producing a deterministic heap write on 64-bit builds. No 2⁶⁴ arithmetic wrap, external delegates, or policy settings are required. This is fixed in version 14.8.2.

AI Insight

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
Magick.NET-Q16-x64NuGet
< 14.8.214.8.2
Magick.NET-Q8-x64NuGet
< 14.8.214.8.2
Magick.NET-Q16-HDRI-x64NuGet
< 14.8.214.8.2
Magick.NET-Q8-OpenMP-x64NuGet
< 14.8.214.8.2
Magick.NET-Q16-HDRI-OpenMP-x64NuGet
< 14.8.214.8.2
Magick.NET-Q16-OpenMP-x64NuGet
< 14.8.214.8.2
Magick.NET-Q8-arm64NuGet
< 14.8.214.8.2
Magick.NET-Q16-arm64NuGet
< 14.8.214.8.2
Magick.NET-Q16-OpenMP-arm64NuGet
< 14.8.214.8.2
Magick.NET-Q8-OpenMP-arm64NuGet
< 14.8.214.8.2
Magick.NET-Q16-HDRI-OpenMP-arm64NuGet
< 14.8.214.8.2
Magick.NET-Q16-HDRI-arm64NuGet
< 14.8.214.8.2

Affected products

22

Patches

Vulnerability mechanics

References

5

News mentions

0

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