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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200802-02">
<title>Doomsday: Multiple vulnerabilities</title>
<synopsis>
Multiple vulnerabilities in Doomsday might allow remote execution of
arbitrary code or a Denial of Service.
</synopsis>
<product type="ebuild">doomsday</product>
<announced>2008-02-06</announced>
<revised count="02">2008-02-10</revised>
<bug>190835</bug>
<access>remote</access>
<affected>
<package name="games-fps/doomsday" auto="no" arch="*">
<vulnerable range="le">1.9.0_beta52</vulnerable>
</package>
</affected>
<background>
<p>
The Doomsday Engine (deng) is a modern gaming engine for popular ID
games like Doom, Heretic and Hexen.
</p>
</background>
<description>
<p>
Luigi Auriemma discovered multiple buffer overflows in the
D_NetPlayerEvent() function, the Msg_Write() function and the
NetSv_ReadCommands() function. He also discovered errors when handling
chat messages that are not NULL-terminated (CVE-2007-4642) or contain a
short data length, triggering an integer underflow (CVE-2007-4643).
Furthermore a format string vulnerability was discovered in the
Cl_GetPackets() function when processing PSV_CONSOLE_TEXT messages
(CVE-2007-4644).
</p>
</description>
<impact type="high">
<p>
A remote attacker could exploit these vulnerabilities to execute
arbitrary code with the rights of the user running the Doomsday server
or cause a Denial of Service by sending specially crafted messages to
the server.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
While some of these issues could be resolved in
"games-fps/doomsday-1.9.0-beta5.2", the format string vulnerability
(CVE-2007-4644) remains unfixed. We recommend that users unmerge
Doomsday:
</p>
<code>
# emerge --unmerge games-fps/doomsday</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4642">CVE-2007-4642</uri>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4643">CVE-2007-4643</uri>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4644">CVE-2007-4644</uri>
</references>
<metadata tag="requester" timestamp="2007-12-06T00:50:29Z">
rbu
</metadata>
<metadata tag="submitter" timestamp="2007-12-12T01:08:23Z">
rbu
</metadata>
<metadata tag="bugReady" timestamp="2008-01-20T00:41:43Z">
rbu
</metadata>
</glsa>
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