Accessibility

Security bulletin

Security update available for Adobe Flash Player

Release date: September 21, 2011

Vulnerability identifier: APSB11-26

CVE number: CVE-2011-2426, CVE-2011-2427, CVE-2011-2428, CVE-2011-2429, CVE-2011-2430, CVE-2011-2444

Platform: All Platforms

Summary

Critical vulnerabilities have been identified in Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris, and Adobe Flash Player 10.3.186.6 and earlier versions for Android.  These vulnerabilities could cause a crash and potentially allow an attacker to take control of the affected system.

There are reports that one of these vulnerabilities (CVE-2011-2444) is being exploited in the wild in active targeted attacks designed to trick the user into clicking on a malicious link delivered in an email message. This universal cross-site scripting issue could be used to take actions on a user's behalf on any website or webmail provider if the user visits a malicious website.

Adobe recommends users of Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris update to Adobe Flash Player 10.3.183.10. Users of Adobe Flash Player for Android 10.3.186.6 and earlier versions should update to Adobe Flash Player for Android 10.3.186.7. 

Affected software versions

  • Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris operating systems
  • Adobe Flash Player 10.3.186.6  and earlier versions for Android

(Note: The Authplay.dll component that ships with Adobe Reader and Acrobat X (10.1.1) and earlier 10.x and 9.x versions for Windows and Macintosh operating systems is not impacted by CVE-2011-2444.)

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.
To verify the version of Adobe Flash Player for Android, go to Settings > Applications > Manage Applications > Adobe Flash Player 10.x.

Solution

Adobe recommends all users of Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris upgrade to the newest version 10.3.183.10 by downloading it from the Adobe Flash Player Download Center. Windows users and users of Adobe Flash Player 10.3.183.7 or later for Macintosh can install the update via the auto-update mechanism within the product when prompted.

Users of Adobe Flash Player for Android 10.3.186.6 and earlier versions should update to Adobe Flash Player for Android 10.3.186.7 by browsing to the Android Marketplace  on an Android phone.

Severity rating

Adobe categorizes this as a critical update and recommends users update their installations to the newest versions.

Details

Critical vulnerabilities have been identified in Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris, and Adobe Flash Player 10.3.186.6 and earlier versions for Android.  These vulnerabilities could cause a crash and potentially allow an attacker to take control of the affected system.

Adobe recommends users of Adobe Flash Player  10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris update to Adobe Flash Player 10.3.183.10. Users of Adobe Flash Player for Android 10.3.186.6 and earlier versions should update to Adobe Flash Player for Android 10.3.186.7.

This update resolves a universal cross-site scripting issue that could be used to take actions on a user's behalf on any website or webmail provider if the user visits a malicious website (CVE-2011-2444).

Note: There are reports that this issue is being exploited in the wild in active targeted attacks designed to trick the user into clicking on a malicious link delivered in an email message.

This update resolves an AVM stack overflow issue that may allow for remote code execution. (CVE-2011-2426).

This update resolves an AVM stack overflow issue that may lead to denial of service and code execution.  (CVE-2011-2427).

This update resolves a logic error issue which causes a browser crash and may lead to code execution.  (CVE-2011- 2428).

This update resolves a Flash Player security  control bypass which could allow information disclosure.  (CVE-2011-2429).

This update resolves a streaming media logic error vulnerability which could lead to code execution. (CVE-2011-2430).

Affected software

Recommended player update

Availability

Flash Player 10.3.183.7 and earlier

10.3.183.10

Flash Player Download Center

Flash Player 10.3.183.7 and earlier - network distribution

10.3.183.10

Flash Player Licensing

Flash Player 10.3.186.6 and earlier for Android

 10.3.186.7

Android Marketplace
(browse to on an Android phone)

Flash Player 10.3.183.7 and earlier for Chrome users

10.3.183.10

Google Chrome Releases

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: