glsa-200503-36.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200503-36">
  <title>netkit-telnetd: Buffer overflow</title>
  <synopsis>
    The netkit-telnetd telnet client is vulnerable to a buffer overflow, which
    could allow a malicious telnet server operator to execute arbitrary code.
  </synopsis>
  <product type="ebuild">netkit-telnetd</product>
  <announced>2005-03-31</announced>
  <revised count="01">2005-03-31</revised>
  <bug>87211</bug>
  <access>remote</access>
  <affected>
    <package name="net-misc/netkit-telnetd" auto="yes" arch="*">
      <unaffected range="ge">0.17-r6</unaffected>
      <vulnerable range="lt">0.17-r6</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    netkit-telnetd provides standard Linux telnet client and server.
    </p>
  </background>
  <description>
    <p>
    A buffer overflow has been identified in the slc_add_reply()
    function of netkit-telnetd client, where a large number of SLC commands
    can overflow a fixed size buffer.
    </p>
  </description>
  <impact type="normal">
    <p>
    Successful explotation would require a vulnerable user to connect
    to an attacker-controlled host using telnet, potentially executing
    arbitrary code with the permissions of the telnet user.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All netkit-telnetd users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-misc/netkit-telnetd-0.17-r6"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0469">CAN-2005-0469</uri>
    <uri link="http://www.idefense.com/application/poi/display?id=220&amp;type=vulnerabilities">iDEFENSE Advisory 03-28-05</uri>
  </references>
  <metadata tag="requester" timestamp="2005-03-30T08:13:45Z">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="2005-03-30T13:44:36Z">
    formula7
  </metadata>
  <metadata tag="bugReady" timestamp="2005-03-30T19:43:01Z">
    koon
  </metadata>
</glsa>