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An updated Adobe Flash Player package that fixes several security issues is now available for Red Hat Enterprise Linux 3 and 4 Extras. This update has been rated as having critical security impact by the Red Hat Security Response Team. [Updated 18th November 2008] This erratum has been updated to include a reference to the additional CVE-named issue that was not public at the time of release. The security impact of the erratum has also been upgraded to Critical. No changes have been made to the packages. The flash-plugin package contains a Firefox-compatible Adobe Flash Player Web browser plug-in. A flaw was found in the way Adobe Flash Player wrote content to the clipboard. A malicious SWF (Shockwave Flash) file could populate the clipboard with a URL that could cause the user to accidentally or mistakenly load an attacker-controlled URL. (CVE-2008-3873) A flaw was found with Adobe's ActionScript scripting language which allowed Flash scripts to initiate file uploads and downloads without user interaction. ActionScript's FileReference.browse and FileReference.download method calls can now only be initiated via user interaction, such as through mouse-clicks or key-presses on the keyboard. (CVE-2008-4401) A flaw was found in Adobe Flash Player's display of Settings Manager content. A malicious SWF file could trick the user into unintentionally or mistakenly clicking a link or a dialog which could then give the malicious SWF file permission to access the local machine's camera or microphone. (CVE-2008-4503) Flaws were found in the way Flash Player restricted the interpretation and usage of cross-domain policy files. A remote attacker could use Flash Player to conduct cross-domain and cross-site scripting attacks (CVE-2007-4324, CVE-2007-6243). This update provides enhanced fixes for these issues. Flash Player contains a flaw in the way it interprets HTTP response headers. An attacker could use this flaw to conduct a cross-site scripting attack against the user running Flash Player. (CVE-2008-4818) A flaw was found in the way Flash Player handles the ActionScript attribute. A malicious site could use this flaw to inject arbitrary HTML content, confusing the user running the browser. (CVE-2008-4823) A flaw was found in the way Flash Player interprets policy files. It was possible to bypass a non-root domain policy, possibly allowing a malicious site to access data in a different domain. (CVE-2008-4822) A flaw was found in how Flash Player's jar: protocol handler interacts with Mozilla. A malicious flash application could use this flaw to disclose sensitive information. (CVE-2008-4821) Updated Flash Player also extends mechanisms to help prevent an attacker from executing a DNS rebinding attack. (CVE-2008-4819) All users of Adobe Flash Player should upgrade to this updated package, which contains Flash Player version 126.96.36.199.