In BlueZ 5.42, a buffer over-read was identified in “l2cap_packet” function in “monitor/packet.c” source file. This issue can be triggered by processing a corrupted dump file and will result in btmon crash.

In BlueZ 5.42, an out-of-bounds read was observed in “le_meta_ev_dump” function in “tools/parser/hci.c” source file. This issue exists because ‘subevent’ (which is used to read correct element from ‘ev_le_meta_str’ array) is overflowed.

In BlueZ 5.42, a buffer overflow was observed in “commands_dump” function in “tools/parser/csr.c” source file. The issue exists because “commands” array is overflowed by supplied parameter due to lack of boundary checks on size of the buffer from frame “frm->ptr” parameter. This issue can be triggered by processing a corrupted dump file and will result in hcidump crash.