A vulnerability was found in ImageMagick, causing an outside the range of representable values of type 'unsigned long' at coders/pcl.c, when crafted or untrusted input is processed. This leads to a negative impact to application availability or other problems related to undefined behavior.
https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html
https://github.com/ImageMagick/ImageMagick6/commit/29c8abce0da56b536542f76a9ddfebdaab5b2943
https://github.com/ImageMagick/ImageMagick/commit/f221ea0fa3171f0f4fdf74ac9d81b203b9534c23