Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the subtlv length in the functions, parsehellosubtlv, parseihusubtlv, and parseupdatesubtlv in babeld/message.c.

A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to missing a check on the input packet length in the babelpacketexamin function in babeld/message.c.

A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to a wrong check on the input packet length in the babelpacketexamin function in babeld/message.c.

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isistlvs.c.