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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200708-17">
<title>Opera: Multiple vulnerabilities</title>
Opera contain several vulnerabilities, some of which may allow the
execution of arbitrary code.
<product type="ebuild">opera</product>
<announced>August 22, 2007</announced>
<revised>August 22, 2007: 01</revised>
<package name="www-client/opera" auto="yes" arch="*">
<unaffected range="ge">9.23</unaffected>
<vulnerable range="lt">9.23</vulnerable>
Opera is a multi-platform web browser.
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).
<impact type="normal">
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
There is no known workaround at this time for all these
All Opera users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=www-client/opera-9.23&quot;</code>
<uri link="">CVE-2007-3142</uri>
<uri link="">CVE-2007-3819</uri>
<uri link="">CVE-2007-3929</uri>
<uri link="">CVE-2007-4367</uri>
<uri link="">Opera Advisory 861</uri>
<metadata tag="requester" timestamp="Sun, 29 Jul 2007 20:48:46 +0000">
<metadata tag="bugReady" timestamp="Sun, 29 Jul 2007 20:48:57 +0000">
<metadata tag="submitter" timestamp="Mon, 20 Aug 2007 09:59:22 +0000">