Opera: Multiple vulnerabilities

Background

Opera is a fast web browser that is available free of charge.

Description

Multiple vulnerabilities have been discovered in Opera:

• Opera does not restrict the ability of a framed web page to change the address associated with a different frame (CVE-2008-4195).
• Chris Weber (Casaba Security) discovered a Cross-site scripting vulnerability (CVE-2008-4196).
• Michael A. Puls II discovered that Opera can produce argument strings that contain uninitialized memory, when processing custom shortcut and menu commands (CVE-2008-4197).
• Lars Kleinschmidt discovered that Opera, when rendering an HTTP page that has loaded an HTTPS page into a frame, displays a padlock icon and offers a security information dialog reporting a secure connection (CVE-2008-4198).
• Opera does not prevent use of links from web pages to feed source files on the local disk (CVE-2008-4199).
• Opera does not ensure that the address field of a news feed represents the feed’s actual URL (CVE-2008-4200).
• Opera does not check the CRL override upon encountering a certificate that lacks a CRL (CVE-2008-4292).
• Chris (Matasano Security) reported that Opera may crash if it is redirected by a malicious page to a specially crafted address (CVE-2008-4694).
• Nate McFeters reported that Opera runs Java applets in the context of the local machine, if that applet has been cached and a page can predict the cache path for that applet and load it from the cache (CVE-2008-4695).
• Roberto Suggi Liverani (Security-Assessment.com) reported that Opera’s History Search results does not escape certain constructs correctly, allowing for the injection of scripts into the page (CVE-2008-4696).
• David Bloom reported that Opera’s Fast Forward feature incorrectly executes scripts from a page held in a frame in the outermost page instead of the page the JavaScript URL was located (CVE-2008-4697).
• David Bloom reported that Opera does not block some scripts when previewing a news feed (CVE-2008-4698).
• Opera does not correctly sanitize content when certain parameters are passed to Opera’s History Search, allowing scripts to be injected into the History Search results page (CVE-2008-4794).
• Opera’s links panel incorrectly causes scripts from a page held in a frame to be executed in the outermost page instead of the page where the URL was located (CVE-2008-4795).

Impact

These vulnerabilties allow remote attackers to execute arbitrary code, to run scripts injected into Opera’s History Search with elevated privileges, to inject arbitrary web script or HTML into web pages, to manipulate the address bar, to change Opera’s preferences, to determine the validity of local filenames, to read cache files, browsing history, and subscribed feeds or to conduct other attacks.

Workaround

There is no known workaround at this time.

Resolution

All Opera users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-client/opera-9.62"