libmodbus.so is vulnerable to out-of-bounds read. It is due to lack of protection against malicious write request in MODBUS_FC_WRITE_MULTIPLE_COILS
case.
github.com/stephane/libmodbus/commit/5ccdf5ef79d742640355d1132fa9e2abc7fbaefc
libmodbus.org/2019/stable-and-development-releases/
lists.debian.org/debian-lts-announce/2021/11/msg00020.html
lists.fedoraproject.org/archives/list/[email protected]/message/HAGHQFJTJCMYHW553OUWJ3YIJR6PJHB7/
lists.fedoraproject.org/archives/list/[email protected]/message/PRAQZXGAZY6UGWZ6CD33QEFLL7AWW233/