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https://github.com/PaperMC/Waterfall.git
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28 lines
1.2 KiB
Diff
28 lines
1.2 KiB
Diff
From fb4385149fe4543ff5285b95a1b9d6a833a3adcb Mon Sep 17 00:00:00 2001
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From: PermisosDev <55111245+PermisosDev@users.noreply.github.com>
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Date: Thu, 15 Apr 2021 08:34:57 -0300
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Subject: [PATCH] Check if packetID is invalid.
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diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java b/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
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index 91da8ab6..c03e1b51 100644
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--- a/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
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+++ b/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
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@@ -65,7 +65,12 @@ public class MinecraftDecoder extends MessageToMessageDecoder<ByteBuf>
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int packetId = DefinedPacket.readVarInt( in );
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packetTypeInfo = packetId;
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-
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+ // FlameCord Start - Check if packetId is invalid.
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+ if (packetId < 0 || packetId > Protocol.MAX_PACKET_ID)
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+ {
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+ throw new FastDecoderException( "[" + ctx.channel().remoteAddress() + "] <-> MinecraftDecoder received invalid packet #1, id " + packetId );
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+ }
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+ // Flamecord End
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DefinedPacket packet = prot.createPacket( packetId, protocolVersion, supportsForge );
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if ( packet != null )
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{
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--
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2.31.1.windows.1
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