glsa-200809-15.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200809-15">
  <title>GNU ed: User-assisted execution of arbitrary code</title>
  <synopsis>
    A buffer overflow vulnerability in ed may allow for the remote execution of
    arbitrary code.
  </synopsis>
  <product type="ebuild">ed</product>
  <announced>2008-09-23</announced>
  <revised count="01">2008-09-23</revised>
  <bug>236521</bug>
  <access>remote</access>
  <affected>
    <package name="sys-apps/ed" auto="yes" arch="*">
      <unaffected range="ge">1.0</unaffected>
      <vulnerable range="lt">1.0</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    GNU ed is a basic line editor. red is a restricted version of ed that
    does not allow shell command execution.
    </p>
  </background>
  <description>
    <p>
    Alfredo Ortega from Core Security Technologies reported a heap-based
    buffer overflow in the strip_escapes() function when processing overly
    long filenames.
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could entice a user to process specially crafted
    commands with ed or red, possibly resulting in the execution of
    arbitrary code with the privileges of the user running the application.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All GNU ed users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=sys-apps/ed-1.0"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3916">CVE-2008-3916</uri>
  </references>
  <metadata tag="requester" timestamp="2008-09-14T11:31:13Z">
    rbu
  </metadata>
  <metadata tag="submitter" timestamp="2008-09-18T21:37:26Z">
    p-y
  </metadata>
  <metadata tag="bugReady" timestamp="2008-09-18T21:37:35Z">
    p-y
  </metadata>
</glsa>