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AnarchyExploitFixes 2.5.1
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@xGinko xGinko released this 07 Nov 22:25
· 663 commits to master since this release
2.5.1
a311721

URGENT UPDATE! PATCHES CONTAINER CLICK / WINDOW CLICK CRASH EXPLOIT

This update contains a patch against a powerful lag/crash method that works across multiple versions

Example error that this update patches:

[INFO]: [STDOUT] [net.minecraft.CrashReport] Negative index in crash report handler (0/18)
[ERROR]: Failed to handle packet net.minecraft.network.protocol.game.PacketPlayInWindowClick@4fcb5fbf, suppressing error
net.minecraft.ReportedException: Container click
	at net.minecraft.world.inventory.AbstractContainerMenu.clicked(AbstractContainerMenu.java:398) ~[?:?]
	at net.minecraft.server.network.ServerGamePacketListenerImpl.handleContainerClick(ServerGamePacketListenerImpl.java:3342) ~[?:?]
	at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:58) ~[?:?]
	at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:23) ~[?:?]
	at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:51) ~[?:?]
	at net.minecraft.server.TickTask.run(TickTask.java:18) ~[purpur-1.20.1.jar:git-Purpur-2062]
	at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
	at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
	at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1365) ~[purpur-1.20.1.jar:git-Purpur-2062]
	at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[purpur-1.20.1.jar:git-Purpur-2062]
	at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
	at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1342) ~[purpur-1.20.1.jar:git-Purpur-2062]
	at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1335) ~[purpur-1.20.1.jar:git-Purpur-2062]
	at net.minecraft.util.thread.BlockableEventLoop.runAllTasks(BlockableEventLoop.java:114) ~[?:?]
	at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1451) ~[purpur-1.20.1.jar:git-Purpur-2062]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1191) ~[purpur-1.20.1.jar:git-Purpur-2062]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:322) ~[purpur-1.20.1.jar:git-Purpur-2062]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.ArrayIndexOutOfBoundsException

New:

  • Added patch against players sending Window Click packet where a negative button or slot value would result in heavy lag followed by a crash. Affects a wide variety of versions up untill 1.20.2. (Consider upgrading paper though unless you need to stay on your version.)

Fixes:

  • Fixed issues with /aef kickphrase and /say command.
Assets 4
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