Integer overflow vulnerabilities were found in PyImaging_MapBuffer function, specifically there's unchecked multiplication of xsize * ysize * bytes_per_pixel where the sizes are each an int as well as unchecked addition of the size calculated above with a attacker provided offset value.
Name: the Pillow project
Red Hat Product Security has rated this issue as having Moderate security
impact. This issue is not currently planned to be addressed in future
updates. For additional information, refer to the Issue Severity