<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200708-17">
  <title>Opera: Multiple vulnerabilities</title>
  <synopsis>
    Opera contain several vulnerabilities, some of which may allow the
    execution of arbitrary code.
  </synopsis>
  <product type="ebuild">opera</product>
  <announced>2007-08-22</announced>
  <revised count="01">2007-08-22</revised>
  <bug>185497</bug>
  <bug>188987</bug>
  <access>remote</access>
  <affected>
    <package name="www-client/opera" auto="yes" arch="*">
      <unaffected range="ge">9.23</unaffected>
      <vulnerable range="lt">9.23</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Opera is a multi-platform web browser.
    </p>
  </background>
  <description>
    <p>
    An error known as "a virtual function call on an invalid pointer" has
    been discovered in the JavaScript engine (CVE-2007-4367). Furthermore,
    iDefense Labs reported that an already-freed pointer may be still used
    under unspecified circumstances in the BitTorrent support
    (CVE-2007-3929). At last, minor other errors have been discovered,
    relative to memory read protection (Opera Advisory 861) and URI
    displays (CVE-2007-3142, CVE-2007-3819).
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could trigger the BitTorrent vulnerability by
    enticing a user into starting a malicious BitTorrent download, and
    execute arbitrary code through unspecified vectors. Additionally, a
    specially crafted JavaScript may trigger the "virtual function"
    vulnerability. The JavaScript engine can also access previously freed
    but uncleaned memory. Finally, a user can be fooled with a too long
    HTTP server name that does not fit the dialog box, or a URI containing
    whitespaces.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time for all these
    vulnerabilities.
    </p>
  </workaround>
  <resolution>
    <p>
    All Opera users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=www-client/opera-9.23"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3142">CVE-2007-3142</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3819">CVE-2007-3819</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3929">CVE-2007-3929</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4367">CVE-2007-4367</uri>
    <uri link="https://www.opera.com/support/search/view/861/">Opera Advisory 861</uri>
  </references>
  <metadata tag="requester" timestamp="2007-07-29T20:48:46Z">
    jaervosz
  </metadata>
  <metadata tag="bugReady" timestamp="2007-07-29T20:48:57Z">
    jaervosz
  </metadata>
  <metadata tag="submitter" timestamp="2007-08-20T09:59:22Z">
    falco
  </metadata>
</glsa>
