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Crash server with large chat message #4409

Seadragon91 opened this issue Oct 3, 2019 · 2 comments


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@Seadragon91 Seadragon91 commented Oct 3, 2019

Expected behavior

Server should kick the client for trying to send a to large chat message or packet .

Actual behavior

Server crashes.

Steps to reproduce the behavior

Use that python script with pycraft, don't forget to switch off Authentication.


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@Seadragon91 Seadragon91 commented Oct 3, 2019

Looks like there a other issues that have the same error
Verification failed: m_Out.WriteVarUTF8String(a_Value), file /home/lukas/cpp/cuberite/src/Protocol/Packetizer.h, line 118

Issues: #4337 and #4323


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@madmaxoft madmaxoft commented Oct 3, 2019

Good job analysing this.

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