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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200407-14">
<title>Unreal Tournament 2003/2004: Buffer overflow in 'secure' queries</title>
<synopsis>
Game servers based on the Unreal engine are vulnerable to remote code
execution through malformed 'secure' queries.
</synopsis>
<product type="ebuild">Unreal Tournament</product>
<announced>2004-07-19</announced>
<revised count="01">2004-07-19</revised>
<bug>54726</bug>
<access>remote</access>
<affected>
<package name="games-fps/ut2003" auto="yes" arch="*">
<unaffected range="ge">2225-r3</unaffected>
<vulnerable range="le">2225-r2</vulnerable>
</package>
<package name="games-server/ut2003-ded" auto="yes" arch="*">
<unaffected range="ge">2225-r2</unaffected>
<vulnerable range="le">2225-r1</vulnerable>
</package>
<package name="games-fps/ut2004" auto="yes" arch="*">
<unaffected range="ge">3236</unaffected>
<vulnerable range="lt">3236</vulnerable>
</package>
<package name="games-fps/ut2004-demo" auto="yes" arch="*">
<unaffected range="ge">3120-r4</unaffected>
<vulnerable range="le">3120-r3</vulnerable>
</package>
</affected>
<background>
<p>
Unreal Tournament 2003 and 2004 are popular first-person-shooter games.
They are both based on the Unreal engine, and can be used in a game server
/ client setup.
</p>
</background>
<description>
<p>
The Unreal-based game servers support a specific type of query called
'secure'. Part of the Gamespy protocol, this query is used to ask if the
game server is able to calculate an exact response using a provided string.
Luigi Auriemma found that sending a long 'secure' query triggers a buffer
overflow in the game server.
</p>
</description>
<impact type="high">
<p>
By sending a malicious UDP-based 'secure' query, an attacker could execute
arbitrary code on the game server.
</p>
</impact>
<workaround>
<p>
Users can avoid this vulnerability by not using Unreal Tournament to host
games as a server. All users running a server should upgrade to the latest
versions.
</p>
</workaround>
<resolution>
<p>
All Unreal Tournament users should upgrade to the latest available
versions:
</p>
<code>
# emerge sync
# emerge -pv ">=games-fps/ut2003-2225-r3"
# emerge ">=games-fps/ut2003-2225-r3"
# emerge -pv ">=games-server/ut2003-ded-2225-r2"
# emerge ">=games-server/ut2003-ded-2225-r2"
# emerge -pv ">=games-fps/ut2004-3236"
# emerge ">=games-fps/ut2004-3236"
# emerge -pv ">=games-fps/ut2004-demo-3120-r4"
# emerge ">=games-fps/ut2004-demo-3120-r4"</code>
</resolution>
<references>
<uri link="http://aluigi.altervista.org/adv/unsecure-adv.txt">Luigi Auriemma advisory</uri>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0608">CAN-2004-0608</uri>
</references>
<metadata tag="submitter">
koon
</metadata>
</glsa>
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