glsa-200501-44.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200501-44">
  <title>ncpfs: Multiple vulnerabilities</title>
  <synopsis>
    The ncpfs utilities contain multiple flaws, potentially resulting in the
    remote execution of arbitrary code or local file access with elevated
    privileges.
  </synopsis>
  <product type="ebuild">ncpfs</product>
  <announced>January 30, 2005</announced>
  <revised>January 30, 2005: 01</revised>
  <bug>77414</bug>
  <access>remote and local</access>
  <affected>
    <package name="net-fs/ncpfs" auto="yes" arch="*">
      <unaffected range="ge">2.2.6</unaffected>
      <vulnerable range="lt">2.2.6</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    ncpfs is a NCP protocol network filesystem driver that allows
    access to NetWare services, to mount volumes of NetWare servers or
    print to NetWare print queues.
    </p>
  </background>
  <description>
    <p>
    Erik Sjolund discovered two vulnerabilities in the programs
    bundled with ncpfs: there is a potentially exploitable buffer overflow
    in ncplogin (CAN-2005-0014), and due to a flaw in nwclient.c, utilities
    using the NetWare client functions insecurely access files with
    elevated privileges (CAN-2005-0013).
    </p>
  </description>
  <impact type="normal">
    <p>
    The buffer overflow might allow a malicious remote NetWare server
    to execute arbitrary code on the NetWare client. Furthermore, a local
    attacker may be able to create links and access files with elevated
    privileges using SUID ncpfs utilities.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All ncpfs users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=net-fs/ncpfs-2.2.6&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0013">CAN-2005-0013</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0014">CAN-2005-0014</uri>
    <uri link="ftp://platan.vc.cvut.cz/pub/linux/ncpfs/Changes-2.2.6">ncpfs ChangeLog</uri>
  </references>
  <metadata tag="requester" timestamp="Sat, 29 Jan 2005 09:02:48 +0000">
    jaervosz
  </metadata>
  <metadata tag="bugReady" timestamp="Sat, 29 Jan 2005 11:01:37 +0000">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="Sat, 29 Jan 2005 11:18:51 +0000">
    koon
  </metadata>
</glsa>