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Protocol 1.8: Fixed possible crash on malformed packet.

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This commit is contained in:
madmaxoft 2014-09-28 22:25:48 +02:00
parent 5a44be13b7
commit f8c627141a
1 changed files with 5 additions and 0 deletions
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5
src/Protocol/Protocol18x.cpp
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@ -1713,6 +1713,11 @@ void cProtocol180::AddReceivedData(const char * a_Data, size_t a_Size)
{ {
UInt32 NumBytesRead = m_ReceivedData.GetReadableSpace(); UInt32 NumBytesRead = m_ReceivedData.GetReadableSpace();
m_ReceivedData.ReadVarInt(CompressedSize); m_ReceivedData.ReadVarInt(CompressedSize);
if (CompressedSize > PacketLen)
{
m_Client->Kick("Bad compression");
return;
}
if (CompressedSize > 0) if (CompressedSize > 0)
{ {
// Decompress the data: // Decompress the data: