metadata/glsa/glsa-200704-18.xml


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

<glsa id="200704-18">
  <title>Courier-IMAP: Remote execution of arbitrary code</title>
  <synopsis>
    A vulnerability has been discovered in Courier-IMAP allowing for remote
    code execution with root privileges.
  </synopsis>
  <product type="ebuild">courier-imap</product>
  <announced>April 22, 2007</announced>
  <revised>April 23, 2007: 02</revised>
  <bug>168196</bug>
  <access>remote</access>
  <affected>
    <package name="net-mail/courier-imap" auto="yes" arch="*">
      <unaffected range="ge">4.0.6-r2</unaffected>
      <unaffected range="lt">4.0.0</unaffected>
      <vulnerable range="lt">4.0.6-r2</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Courier-IMAP is an IMAP server which is part of the Courier mail
    system. It provides access only to maildirs.
    </p>
  </background>
  <description>
    <p>
    CJ Kucera has discovered that some Courier-IMAP scripts don't properly
    handle the XMAILDIR variable, allowing for shell command injection.
    </p>
  </description>
  <impact type="high">
    <p>
    A remote attacker could send specially crafted login credentials to a
    Courier-IMAP server instance, possibly leading to remote code execution
    with root privileges.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Courier-IMAP users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=net-mail/courier-imap-4.0.6-r2&quot;</code>
  </resolution>
  <references/>
  <metadata tag="requester" timestamp="Thu, 12 Apr 2007 14:15:03 +0000">
    jaervosz
  </metadata>
  <metadata tag="bugReady" timestamp="Thu, 12 Apr 2007 14:15:17 +0000">
    jaervosz
  </metadata>
  <metadata tag="submitter" timestamp="Mon, 16 Apr 2007 21:50:11 +0000">
    p-y
  </metadata>
</glsa>