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

<glsa id="200606-02">
  <title>shadow: Privilege escalation</title>
  <synopsis>
    A security issue in shadow allows a local user to perform certain actions
    with escalated privileges.
  </synopsis>
  <product type="ebuild">shadow</product>
  <announced>June 07, 2006</announced>
  <revised>June 07, 2006: 01</revised>
  <bug>133615</bug>
  <access>local</access>
  <affected>
    <package name="sys-apps/shadow" auto="yes" arch="*">
      <unaffected range="ge">4.0.15-r2</unaffected>
      <vulnerable range="lt">4.0.15-r2</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    shadow provides a set of utilities to deal with user accounts.
    </p>
  </background>
  <description>
    <p>
    When the mailbox is created in useradd, the "open()" function does
    not receive the three arguments it expects while O_CREAT is present,
    which leads to random permissions on the created file, before fchmod()
    is executed.
    </p>
  </description>
  <impact type="normal">
    <p>
    Depending on the random permissions given to the mailbox file
    which is at this time owned by root, a local user may be able to open
    this file for reading or writing, or even executing it, maybe as the
    root user.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All shadow users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=sys-apps/shadow-4.0.15-r2&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1174">CVE-2006-1174</uri>
  </references>
  <metadata tag="requester" timestamp="Thu, 01 Jun 2006 07:06:38 +0000">
    falco
  </metadata>
  <metadata tag="submitter" timestamp="Thu, 01 Jun 2006 15:23:57 +0000">
    falco
  </metadata>
  <metadata tag="bugReady" timestamp="Mon, 05 Jun 2006 17:20:29 +0000">
    falco
  </metadata>
</glsa>