glsa-200711-02.xml


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

<glsa id="200711-02">
  <title>OpenSSH: Security bypass</title>
  <synopsis>
    A flaw has been discovered in OpenSSH which could allow a local attacker to
    bypass security restrictions.
  </synopsis>
  <product type="ebuild">openssh</product>
  <announced>November 01, 2007</announced>
  <revised>November 01, 2007: 01</revised>
  <bug>191321</bug>
  <access>remote</access>
  <affected>
    <package name="net-misc/openssh" auto="yes" arch="*">
      <unaffected range="ge">4.7</unaffected>
      <vulnerable range="lt">4.7</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    OpenSSH is a complete SSH protocol implementation that includes an SFTP
    client and server support.
    </p>
  </background>
  <description>
    <p>
    Jan Pechanec discovered that OpenSSH uses a trusted X11 cookie when it
    cannot create an untrusted one.
    </p>
  </description>
  <impact type="low">
    <p>
    An attacker could bypass the SSH client security policy and gain
    privileges by causing an X client to be treated as trusted.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All OpenSSH users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=net-misc/openssh-4.7&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4752">CVE-2007-4752</uri>
  </references>
  <metadata tag="requester" timestamp="Tue, 25 Sep 2007 19:38:10 +0000">
    jaervosz
  </metadata>
  <metadata tag="bugReady" timestamp="Tue, 25 Sep 2007 19:38:18 +0000">
    jaervosz
  </metadata>
  <metadata tag="submitter" timestamp="Fri, 28 Sep 2007 12:20:41 +0000">
    p-y
  </metadata>
</glsa>