Problem: the package btcutil need to be upgraded (crypto-com#664)

Solution: replace the vulnerable repo path with github.com/scrtlabs/btcuti

go.mod

@@ -168,3 +168,5 @@ require (
 replace github.com/gogo/protobuf => github.com/regen-network/protobuf v1.3.2-alpha.regen.4
 
 replace github.com/rs/zerolog => github.com/rs/zerolog v1.23.0
+
+replace github.com/enigmampc/btcutil => github.com/scrtlabs/btcutil v1.0.3-0.20200723161021-e2fb6adb2a25

go.sum

@@ -559,8 +559,6 @@ github.com/elastic/gosigar v0.14.1/go.mod h1:iXRIGg2tLnu7LBdpqzyQfGDEidKCfWcCMS0
 github.com/elazarl/goproxy v0.0.0-20180725130230-947c36da3153/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
 github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
 github.com/emicklei/go-restful v2.9.5+incompatible/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
-github.com/enigmampc/btcutil v1.0.3-0.20200723161021-e2fb6adb2a25 h1:2vLKys4RBU4pn2T/hjXMbvwTr1Cvy5THHrQkbeY9HRk=
-github.com/enigmampc/btcutil v1.0.3-0.20200723161021-e2fb6adb2a25/go.mod h1:hTr8+TLQmkUkgcuh3mcr5fjrT9c64ZzsBCdCEC6UppY=
 github.com/envoyproxy/go-control-plane v0.6.9/go.mod h1:SBwIajubJHhxtWwsL9s8ss4safvEdbitLhGGK48rN6g=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -1574,6 +1572,8 @@ github.com/sasha-s/go-deadlock v0.2.1-0.20190427202633-1595213edefa/go.mod h1:F7
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
 github.com/savsgio/gotils v0.0.0-20200909101946-939aa3fc74fb h1:XPJCVf85HPE2jMVEQ7QWrazaZo1lc94GbUWaQ8Yv5sM=
 github.com/savsgio/gotils v0.0.0-20200909101946-939aa3fc74fb/go.mod h1:TWNAOTaVzGOXq8RbEvHnhzA/A2sLZzgn0m6URjnukY8=
+github.com/scrtlabs/btcutil v1.0.3-0.20200723161021-e2fb6adb2a25 h1:Sg0LXVnsWNIfgjPYk3zBnqj7JRUA9QzVa8nObd9qF80=
+github.com/scrtlabs/btcutil v1.0.3-0.20200723161021-e2fb6adb2a25/go.mod h1:hTr8+TLQmkUkgcuh3mcr5fjrT9c64ZzsBCdCEC6UppY=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
 github.com/seccomp/libseccomp-golang v0.9.1/go.mod h1:GbW5+tmTXfcxTToHLXlScSlAvWlF4P2Ca7zGrPiEpWo=
 github.com/securego/gosec/v2 v2.8.1/go.mod h1:pUmsq6+VyFEElJMUX+QB3p3LWNHXg1R3xh2ssVJPs8Q=