glsa-200409-32.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200409-32">
  <title>getmail: Filesystem overwrite vulnerability</title>
  <synopsis>
    getmail contains a vulnerability that could potentially allow any local
    user to create or overwrite files in any directory on the system. This flaw
    can be escalated further and possibly lead to a complete system compromise.
  </synopsis>
  <product type="ebuild">getmail</product>
  <announced>2004-09-23</announced>
  <revised count="02">2006-05-22</revised>
  <bug>64643</bug>
  <access>local</access>
  <affected>
    <package name="net-mail/getmail" auto="yes" arch="*">
      <unaffected range="ge">4.2.0</unaffected>
      <vulnerable range="lt">4.2.0</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    getmail is a reliable fetchmail replacement that supports Maildir,
    Mboxrd and external MDA delivery.
    </p>
  </background>
  <description>
    <p>
    David Watson discovered a vulnerability in getmail when it is
    configured to run as root and deliver mail to the maildirs/mbox files
    of untrusted local users. A malicious local user can then exploit a
    race condition, or a similar symlink attack, and potentially cause
    getmail to create or overwrite files in any directory on the system.
    </p>
  </description>
  <impact type="high">
    <p>
    An untrusted local user could potentially create or overwrite files in
    any directory on the system. This vulnerability may also be exploited
    to have arbitrary commands executed as root.
    </p>
  </impact>
  <workaround>
    <p>
    Do not run getmail as a privileged user; or, in version 4, use an
    external MDA with explicitly configured user and group privileges.
    </p>
  </workaround>
  <resolution>
    <p>
    All getmail users should upgrade to the latest version:
    </p>
    <code>
    # emerge sync
    
    # emerge -pv "&gt;=net-mail/getmail-4.2.0"
    # emerge "&gt;=net-mail/getmail-4.2.0"</code>
  </resolution>
  <references>
    <uri link="http://www.qcc.ca/~charlesc/software/getmail-4/CHANGELOG">getmail ChangeLog</uri>
    <uri link="https://article.gmane.org/gmane.mail.getmail.user/1430">getmail Mailing List</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0880">CVE-2004-0880</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0881">CVE-2004-0881</uri>
  </references>
  <metadata tag="submitter" timestamp="2004-09-21T21:51:14Z">
    lewk
  </metadata>
  <metadata tag="bugReady" timestamp="2004-09-21T21:52:24Z">
    lewk
  </metadata>
</glsa>