ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-31, a crafted XMP profile can trigger excessive work while the parser determines a rational value's numerator and denominator, causing denial of service. This issue is fixed in version 7.1.2-31.
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v45j-x8p4-3mh4
https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-31
https://github.com/ImageMagick/ImageMagick/commit/f491576297141ff685dc4460d811986f5b6b6cec