AIKIDO-2025-11011
github.com/strukturag/libheif is vulnerable to Out-of-bounds Read
63
Medium Risk
This Affects:
github.com/strukturag/libheifTL;DR
A crafted HEIF file that exercises the overlay image item path triggers a heap buffer over-read in HeifPixelImage::overlay(). The function calculates a negative row length—likely due to an unclipped overlay rectangle or invalid offsets—which underflows when converted to size_t and is then passed to memcpy. This results in an excessively large read beyond the bounds of the source plane, leading to a crash.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
github.com/strukturag/libheif is vulnerable to Out-of-bounds Read in versions 0.0.1 - 1.20.2.
How to fix this
Upgrade the github.com/strukturag/libheif library to the patch version.
Links
GitHub Release
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