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LCEMP RCE fixes

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Based on commit d017bfc30a68888bf5c79b23cf5c4f607cf828bf
This commit is contained in:
Loki Rautio 2026-03-09 04:45:14 -05:00
parent 0c4f459904
commit d557ca2dfb
27 changed files with 222 additions and 80 deletions
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25
Minecraft.World/TexturePacket.cpp
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@ -37,17 +37,26 @@ void TexturePacket::handle(PacketListener *listener)
void TexturePacket::read(DataInputStream *dis) //throws IOException
{
textureName = dis->readUTF();
dwBytes = static_cast<DWORD>(dis->readShort());
short rawBytes = dis->readShort();
if (rawBytes <= 0)
{
dwBytes = 0;
return;
}
dwBytes = (DWORD)(unsigned short)rawBytes;
if (dwBytes > 65536)
{
dwBytes = 0;
return;
}
this->pbData= new BYTE [dwBytes];
if(dwBytes>0)
for(DWORD i=0;i<dwBytes;i++)
{
this->pbData= new BYTE [dwBytes];
for(DWORD i=0;i<dwBytes;i++)
{
this->pbData[i] = dis->readByte();
}
this->pbData[i] = dis->readByte();
}
}
void TexturePacket::write(DataOutputStream *dos) //throws IOException