GHSA-qpg4-j99f-8xcgMediumCVSS 6.8

ImageMagick has heap buffer overflow in WriteXWDImage due to CARD32 arithmetic overflow in bytes_per_line calculation

Published
March 12, 2026
Last Modified
March 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-30937 →

📋 Description

A 32-bit unsigned integer overflow in the XWD (X Windows) encoder can cause an undersized heap buffer allocation. When writing a extremely large image an out of bounds heap write can occur.

=================================================================
==741961==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x5020000083dc at pc 0x56553b4c4245 bp 0x7ffd9d20fef0 sp 0x7ffd9d20fee0
WRITE of size 1 at 0x5020000083dc thread T0

🎯 Affected products19

  • nuget/Magick.NET-Q16-AnyCPU:< 14.10.4
  • nuget/Magick.NET-Q16-HDRI-AnyCPU:< 14.10.4
  • nuget/Magick.NET-Q16-HDRI-OpenMP-arm64:< 14.10.4
  • nuget/Magick.NET-Q16-HDRI-arm64:< 14.10.4
  • nuget/Magick.NET-Q16-HDRI-x64:< 14.10.4
  • nuget/Magick.NET-Q16-HDRI-x86:< 14.10.4
  • nuget/Magick.NET-Q16-OpenMP-arm64:< 14.10.4
  • nuget/Magick.NET-Q16-OpenMP-x64:< 14.10.4
  • nuget/Magick.NET-Q16-OpenMP-x86:< 14.10.4
  • nuget/Magick.NET-Q16-arm64:< 14.10.4
  • nuget/Magick.NET-Q16-x64:< 14.10.4
  • nuget/Magick.NET-Q16-x86:< 14.10.4
  • nuget/Magick.NET-Q16-HDRI-OpenMP-x64:< 14.10.4
  • nuget/Magick.NET-Q8-AnyCPU:< 14.10.4
  • nuget/Magick.NET-Q8-OpenMP-arm64:< 14.10.4
  • nuget/Magick.NET-Q8-OpenMP-x64:< 14.10.4
  • nuget/Magick.NET-Q8-arm64:< 14.10.4
  • nuget/Magick.NET-Q8-x64:< 14.10.4
  • nuget/Magick.NET-Q8-x86:< 14.10.4

🔗 References (3)