The base64decode function in base64.c in libimobiledevice libplist through 1.12 allows attackers to obtain sensitive information from process memory or cause a denial of service (buffer over-read) via split encoded Apple Property List data.
https://lists.debian.org/debian-lts-announce/2020/04/msg00002.html
https://github.com/libimobiledevice/libplist/commit/3a55ddd3c4c11ce75a86afbefd085d8d397ff957