The Unreal Admins Page - Forums

The Unreal Admins Page - Forums (https://unrealadmin.org/forums/index.php)
-   General Chat (https://unrealadmin.org/forums/forumdisplay.php?f=177)
-   -   [Release] unreliable-adv security patch (https://unrealadmin.org/forums/showthread.php?t=30035)

AnthraX 19th July, 2010 02:16 AM

[Release] unreliable-adv security patch
 
1 Attachment(s)
This is a security patch for UT v451 servers. The vulnerability is described here: http://aluigi.altervista.org/adv/unreliable-adv.txt

The UT v440/451 windows and linux servers are affected by this vulnerability. UT v436 is immune. This patch only works on v451 servers. Do NOT install it on v440/436 servers. Due to the nature of the function that contains the vulnerability, I cannot fix this externally in ServerCrashFix. The only way to fix this properly is to edit the source code (but it doesn't look like that's going to happen). This patch doesn't fix the vulnerability, it simply prevents the server from crashing.

Installation:

* Shut down the server.
* If you run linux, replace Engine.so with the file attached to this post. If you run windows, replace Engine.dll.
* Restart the server.

For Unreal Engine licensees:

In UnChan.cpp, UChannel::ReceivedRawBunch:

Replace:

checkSlow(NumInRec<=RELIABLE_BUFFER);

With:

if (NumInRec>=RELIABLE_BUFFER-1)
{
Connection->State = USOCK_Closed;
}

Genecom 19th July, 2010 02:50 AM

Very cool - Thank you mate!
Hope some more people read this info, very interesting!

SoNY_scarface 19th July, 2010 04:26 AM

Nice, thank you Anth

qwerty 19th July, 2010 07:36 AM

shwwweeet!

SC]-[LO]\[G_{HoF} 19th July, 2010 04:37 PM

Patched last night. Thanks Anth and good work.

Chronox 19th July, 2010 11:11 PM

Well patched no problem but ACE servers are kicking me and i cant play...(yeah i replaced the old file , no backup so im fucked)

That goes for you tu Scar, white list it please :D

Sp0ngeb0b 19th July, 2010 11:22 PM

Ehm, this fix should only be placed on servers, and not on clients ...

LeeBe 20th July, 2010 12:33 AM

Quote:

Originally Posted by Chronox (Post 156181)
Well patched no problem but ACE servers are kicking me and i cant play...(yeah i replaced the old file , no backup so im fucked)

That goes for you tu Scar, white list it please :D

Quote:

Originally Posted by AnthraX (Post 156127)
This is a security patch for UT v451 servers.

!!!!

{DOU}Draco 20th July, 2010 03:31 AM

Quote:

Originally Posted by AnthraX (Post 156127)
This is a security patch for UT v451 servers.

Server-side only, Chronox.

~Johnny Jones

SoNY_scarface 20th July, 2010 07:02 AM

.....Jesus do you read? Lol

[G4U]The_Sp00nHead 20th July, 2010 02:41 PM

Thanks Anth ....

Patching now !!

Sp00neY

Chronox 20th July, 2010 02:46 PM

Lol then im screwed xD !!

Cant play on UK servers anymore.

SoNY_scarface 20th July, 2010 03:13 PM

Which version of UT are you running? 436 or 451?

Genecom 20th July, 2010 05:42 PM

Quote:

Originally Posted by Chronox (Post 156208)
Lol then im screwed xD !!

Cant play on UK servers anymore.

Download the 436Nodelta patch and you'll be fine.

Chronox 21st July, 2010 03:12 AM

I use v451b and i dont want to reinstall anything =X ??

Can i just get the engine file form somewhere and replace it again ?

kawaii 21st July, 2010 06:51 AM

Quote:

Originally Posted by Chronox (Post 156237)
I use v451b and i dont want to reinstall anything =X ??

Can i just get the engine file form somewhere and replace it again ?

Why would you run 451 as a client anyway?

SoNY_scarface 21st July, 2010 09:33 AM

Quote:

Originally Posted by Chronox (Post 156237)
I use v451b and i dont want to reinstall anything =X ??

Can i just get the engine file form somewhere and replace it again ?


You don't need to re-install everything.

Download the 436nodeltapatch on the uk site and just run it. Make sure you keep a copy of your user.ini and unrealtournament.ini so that you don't lose your settings.

MyM 21st July, 2010 12:05 PM

If you are adamant on running 451b (no idea why on a client) then just download the 451b patch zip again and copy the engine file out of it.

SesioN 21st July, 2010 10:50 PM

Patched, thanks alot!

-=V@STV$T=- 2nd August, 2010 12:36 PM

what does this patch exactly covers?

has this to do somethign with buffer overflow or ddos? or something?


All times are GMT +1. The time now is 06:35 AM.

 


All pages are copyright The Unreal Admins Page.
You may not copy any pages without our express permission.