According to the Adobe Security Bulletin dated November 12 2013, Adobe has released updated versions of Adobe Flash Player for:
- Adobe Flash Player v11.9.900.117 and earlier versions for Windows and Macintosh,
- Adobe Flash Player v18.104.22.1680 and earlier versions for Linux
to ” address vulnerabilities that could cause a crash and potentially allow an attacker to take control of the affected system.”
You can read the Adobe Security Bulletin at http://www.adobe.com/support/security/bulletins/apsb13-26.html but the vulnerabilities in versions of Adobe Flash before November 12 2013 could allow for execution of unwanted code (typically malware), without your consent just by visiting a website with malicious Flash applications or video (SWF). Therefore, you should update your Adobe Flash Player to the latest version to close this loophole.
To determine what version of the Adobe Flash player you have on your Windows, Macintosh or Linux system, visit http://www.adobe.com/software/flash/about/
To download the latest version of Adobe Flash Player, visit http://www.adobe.com/products/flashplayer/distribution3.html
Windows users should note that the Flash Player in v9 and earlier versions of Microsoft Internet Explorer v9 and the one in web browsers like Opera, Mozilla Firefox and Safari are separate installs. You should install and update both versions of Adobe Flash.
Internet Explorer v10 and Internet Explorer v11 (for users for Windows 7 Service Pack 1 and Windows 8) browsers have Adobe Flash Player built-in and users should update their Internet Explorer browser versions.
Google Chrome browser users has Adobe Flash Player built-in and users should update the Google Chrome browser to the latest version. See http://www.google.com/support/chrome/bin/answer.py?answer=95414 on how to do so.