Security updates available for Flash Player

Summary

Adobe has released security updates for Adobe Flash Player for Windows, Macintosh, Linux and Chrome OS. These updates address critical vulnerabilities that could potentially allow an attacker to take control of the affected system.  

Affected product versions

Product	Version	Platform
Adobe Flash Player Desktop Runtime	26.0.0.131 and earlier	Windows, Macintosh and Linux
Adobe Flash Player for Google Chrome	26.0.0.131 and earlier	Windows, Macintosh, Linux and Chrome OS
Adobe Flash Player for Microsoft Edge and Internet Explorer 11	26.0.0.120 and earlier	Windows 10 and 8.1

• To verify the version of Adobe Flash Player installed on your system, access the About Flash Player page, or right-click on content running in Flash Player and select "About Adobe (or Macromedia) Flash Player" from the menu. If you use multiple browsers, perform the check for each browser you have installed on your system.  

Solution

Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version:

Product	Version	Platform	Priority	Availability
Adobe Flash Player Desktop Runtime	26.0.0.137	Windows, Macintosh	1	Flash Player Download Center Flash Player Distribution
Adobe Flash Player for Google Chrome	26.0.0.137	Windows, Macintosh, Linux and Chrome OS	1	Google Chrome Releases
Adobe Flash Player for Microsoft Edge and Internet Explorer 11	26.0.0.137	Windows 10 and 8.1	1	Microsoft Security Advisory
Adobe Flash Player Desktop Runtime	26.0.0.137	Linux	3	Flash Player Download Center

Note:

• Adobe recommends users of the Adobe Flash Player Desktop Runtime for Windows, Macintosh and Linux update to Adobe Flash Player 26.0.0.137 via the update mechanism within the product [1] or by visiting the Adobe Flash Player Download Center.
• Adobe Flash Player installed with Google Chrome will be automatically updated to the latest Google Chrome version, which will include Adobe Flash Player 26.0.0.137 for Windows, Macintosh, Linux and Chrome OS.
• Adobe Flash Player installed with Microsoft Edge and Internet Explorer 11 for Windows 10 and 8.1 will be automatically updated to the latest version, which will include Adobe Flash Player 26.0.0.137.
• Please visit the Flash Player Help page for assistance in installing Flash Player.

[1] Users who have selected the option to 'Allow Adobe to install updates' will receive the update automatically. Users who do not have the 'Allow Adobe to install updates' option enabled can install the update via the update mechanism within the product when prompted.

Vulnerability details

Vulnerability Category	Vulnerability Impact	Severity	CVE Numbers
Security Bypass	Information Disclosure	Important	CVE-2017-3080
Memory Corruption	Remote Code Execution	Critical	CVE-2017-3099
Memory Corruption	Memory address disclosure	Important	CVE-2017-3100

Note:

Adobe is aware that some details of CVE-2017-3080 were publicly published on July 3, 2017

Acknowledgments

Adobe would like to thank the following individuals and organizations for reporting the relevant issues and for working with Adobe to help protect our customers:

• Jihui Lu of Tencent KeenLab (CVE-2017-3099)
• bo13oy working with Trend Micro's Zero Day Initiative (CVE-2017-3100)