glsa-200802-02.xml


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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>February 06, 2008</announced>
  <revised>February 10, 2008: 02</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="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4642">CVE-2007-4642</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4643">CVE-2007-4643</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4644">CVE-2007-4644</uri>
  </references>
  <metadata tag="requester" timestamp="Thu, 06 Dec 2007 00:50:29 +0000">
    rbu
  </metadata>
  <metadata tag="submitter" timestamp="Wed, 12 Dec 2007 01:08:23 +0000">
    rbu
  </metadata>
  <metadata tag="bugReady" timestamp="Sun, 20 Jan 2008 00:41:43 +0000">
    rbu
  </metadata>
</glsa>