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 important security impact by the Red Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 3 Extras - i386 Red Hat Desktop version 3 Extras - i386 Red Hat Enterprise Linux ES version 3 Extras - i386 Red Hat Enterprise Linux WS version 3 Extras - i386 Red Hat Enterprise Linux AS version 4 Extras - i386 Red Hat Desktop version 4 Extras - i386 Red Hat Enterprise Linux ES version 4 Extras - i386 Red Hat Enterprise Linux WS version 4 Extras - i386
3. Description:
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 9.0.151.0.
4. Solution:
Before applying this update, make sure that all previously-released errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188
252292 - CVE-2007-4324 Flash movie can determine whether a TCP port is open 440664 - CVE-2007-6243 Flash Player cross-domain and cross-site scripting flaws 465736 - CVE-2008-3873 flash: clipboard hijack attack 466154 - CVE-2008-4401 flash-plugin: upload/download user interaction 466344 - CVE-2008-4503 Adobe Flash Player clickjacking 470116 - CVE-2008-4818 Flash Player XSS 470123 - CVE-2008-4819 Flash Player DNS rebind attack 470128 - CVE-2008-4823 Flash Player HTML injection flaw 470130 - CVE-2008-4822 Flash Player policy file interpretation flaw 470131 - CVE-2008-4821 Flash Player jar: protocol handler