An integer overflow vulnerability in the ptp_unpack_EOS_CustomFuncEx function of the ptp-pack.c file of libmtp (version 1.1.12 and below) allows attackers to cause a denial of service (out-of-bounds memory access) or maybe remote code execution by inserting a mobile device into a personal computer through a USB cable.
https://sourceforge.net/p/libmtp/mailman/message/35735992/
https://lists.debian.org/debian-lts-announce/2020/04/msg00003.html