Adobe Security Bulletin

Release date: December 28, 2015

Last updated: June 23, 2016

Vulnerability identifier: APSB16-01

Priority: See table below

CVE number: CVE-2015-8459, CVE-2015-8460, CVE-2015-8634, CVE-2015-8635, CVE-2015-8636, CVE-2015-8638, CVE-2015-8639, CVE-2015-8640, CVE-2015-8641, CVE-2015-8642, CVE-2015-8643, CVE-2015-8644, CVE-2015-8645, CVE-2015-8646, CVE-2015-8647, CVE-2015-8648, CVE-2015-8649, CVE-2015-8650, CVE-2015-8651, CVE-2016-0959

Platform: All Platforms

Summary

Adobe has released security updates for Adobe Flash Player.  These updates address critical vulnerabilities that could potentially allow an attacker to take control of the affected system.

Adobe is aware of a report that an exploit for CVE-2015-8651 is being used in limited, targeted attacks.

Affected Versions

• 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 AIR installed on your system, follow the instructions in the Adobe AIR TechNote.

Solution

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

• Adobe recommends users of the  Adobe Flash Player Desktop Runtime for Windows and Macintosh update to 20.0.0.267 by visiting the Adobe Flash Player Download Center, or via the update mechanism within the product when prompted [1].
• Adobe recommends users of the Adobe Flash Player Extended Support Release should update to version 18.0.0.324 by visiting http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html.
• Adobe recommends users of Adobe Flash Player for Linux update to Adobe Flash Player 11.2.202.559 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 20.0.0.267 for Windows, Macintosh, Linux and Chrome OS.
• Adobe Flash Player installed with Microsoft Edge and Internet Explorer for Windows 10 will be automatically updated to the latest version, which will include Adobe Flash Player 20.0.0.267. 
• Adobe Flash Player installed with Internet Explorer for Windows 8.x will be automatically updated to the latest version, which will include Adobe Flash Player 20.0.0.267.
• Adobe recommends users of the AIR desktop runtime, AIR SDK and AIR SDK & Compiler update to version 20.0.0.233 by visiting the AIR download center or the AIR developer center. 
• Please visit the Flash Player Help page for assistance in installing Flash Player.

Vulnerability Details

• These updates resolve a type confusion vulnerability that could lead to code execution (CVE-2015-8644).
• These updates resolve an integer overflow vulnerability that could lead to code execution (CVE-2015-8651).
• These updates resolve use-after-free vulnerabilities that could lead to code execution (CVE-2015-8634, CVE-2015-8635, CVE-2015-8638, CVE-2015-8639, CVE-2015-8640, CVE-2015-8641, CVE-2015-8642, CVE-2015-8643, CVE-2015-8646, CVE-2015-8647, CVE-2015-8648, CVE-2015-8649, CVE-2015-8650, CVE-2016-0959).
• These updates resolve memory corruption vulnerabilities that could lead to code execution (CVE-2015-8459, CVE-2015-8460, CVE-2015-8636, CVE-2015-8645).

Acknowledgments

• Natalie Silvanovich of Google Project Zero (CVE-2015-8644)
• Anonymous working with HP's Zero Day Initiative (CVE-2015-8638, CVE-2015-8639, CVE-2015-8647, CVE-2015-8648, CVE-2015-8649, CVE-2015-8650)
• Yuki Chen of Qihoo 360 Vulcan Team (CVE-2015-8640, CVE-2015-8641, CVE-2015-8642, CVE-2015-8643, CVE-2015-8646)
• Jie Zeng of Qihoo 360 (CVE-2015-8460)
• Ben Hawkes, Mateusz Jurczyk and Natalie Silvanovich of Google Project Zero (CVE-2015-8634, CVE-2015-8635, CVE-2015-8636)
• Kai Kang of Tencent's Xuanwu LAB (CVE-2015-8459)
• Jaehun Jeong (@n3sk) of WINS, WSEC Analysis Team working with Chromium Vulnerability Reward Program (CVE-2015-8645)
  
• Nicolas Joly of Microsoft Vulnerability Research (CVE-2016-0959)

Revisions

December 29, 2015: Removed the acknowledgment for CVE-2015-8651. 

June 23, 2016: Added reference for CVE-2016-0959, which was resolved in these updates but inadvertently omitted from the original version of the bulletin.