ImageMagick has has an off-by-one origin validation in allows out-of-bounds read in morphology processing

Description

==1200284==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x5100000002d0 at pc 0x59e28e60c27a bp 0x7fff047fd8e0 sp 0x7fff047fd8d0
READ of size 4 at 0x5100000002d0 thread T0

References

• ImageMagick/ImageMagick security advisory · WEB
• ImageMagick/ImageMagick · PACKAGE
• vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in-morphology-processing · Third Party Advisory

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