From 281ef53e7de5d30114dbf57a4b506b2d8d2720cc Mon Sep 17 00:00:00 2001 From: Wim Date: Tue, 12 Apr 2022 00:30:21 +0200 Subject: Update dependencies (#1800) --- .../protobuf/encoding/protowire/wire.go | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) (limited to 'vendor/google.golang.org/protobuf/encoding/protowire') diff --git a/vendor/google.golang.org/protobuf/encoding/protowire/wire.go b/vendor/google.golang.org/protobuf/encoding/protowire/wire.go index a427f8b7..9c61112f 100644 --- a/vendor/google.golang.org/protobuf/encoding/protowire/wire.go +++ b/vendor/google.golang.org/protobuf/encoding/protowire/wire.go @@ -21,10 +21,11 @@ import ( type Number int32 const ( - MinValidNumber Number = 1 - FirstReservedNumber Number = 19000 - LastReservedNumber Number = 19999 - MaxValidNumber Number = 1<<29 - 1 + MinValidNumber Number = 1 + FirstReservedNumber Number = 19000 + LastReservedNumber Number = 19999 + MaxValidNumber Number = 1<<29 - 1 + DefaultRecursionLimit = 10000 ) // IsValid reports whether the field number is semantically valid. @@ -55,6 +56,7 @@ const ( errCodeOverflow errCodeReserved errCodeEndGroup + errCodeRecursionDepth ) var ( @@ -112,6 +114,10 @@ func ConsumeField(b []byte) (Number, Type, int) { // When parsing a group, the length includes the end group marker and // the end group is verified to match the starting field number. func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) { + return consumeFieldValueD(num, typ, b, DefaultRecursionLimit) +} + +func consumeFieldValueD(num Number, typ Type, b []byte, depth int) (n int) { switch typ { case VarintType: _, n = ConsumeVarint(b) @@ -126,6 +132,9 @@ func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) { _, n = ConsumeBytes(b) return n case StartGroupType: + if depth < 0 { + return errCodeRecursionDepth + } n0 := len(b) for { num2, typ2, n := ConsumeTag(b) @@ -140,7 +149,7 @@ func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) { return n0 - len(b) } - n = ConsumeFieldValue(num2, typ2, b) + n = consumeFieldValueD(num2, typ2, b, depth-1) if n < 0 { return n // forward error code } -- cgit v1.2.3