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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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4
Minecraft.World/DataInputStream.cpp
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@ -303,6 +303,10 @@ wstring DataInputStream::readUTF()
int b = stream->read();
unsigned short UTFLength = static_cast<unsigned short>(((a & 0xff) << 8) | (b & 0xff));
const unsigned short MAX_UTF_LENGTH = 32767;
if (UTFLength > MAX_UTF_LENGTH)
return outputString;
//// 4J Stu - I decided while writing DataOutputStream that we didn't need to bother using the UTF8 format
//// used in the java libs, and just write in/out as wchar_t all the time