CVE-2019-6135: Missing Release of Memory after Effective Lifetime

An issue has been found in libIEC61850 v1.3.1. Memorymalloc in hal/memory/libmemory.c has a memory leak when called from Asn1PrimitiveValuecreate in mms/asn1/asn1berprimitivevalue.c, as demonstrated by goosepublisherexample.c and iec6185092LEexample.c...