CVE-2020-25663

A call to ConformPixelInfo() in the SetImageAlphaChannel() routine of
/MagickCore/channel.c caused a subsequent heap-use-after-free or
heap-buffer-overflow READ when GetPixelRed() or GetPixelBlue() was called.
This could occur if an attacker is able to submit a malicious image file to
be processed by ImageMagick and could lead to denial of service. It likely
would not lead to anything further because the memory is used as pixel data
and not e.g. a function pointer. This flaw affects ImageMagick versions
prior to 7.0.9-0.

Bugs

• <https://github.com/ImageMagick/ImageMagick/issues/1723&gt;

Notes