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                             CERT-Renater

                 Note d'Information No. 2016/VULN366
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DATE                : 27/10/2016

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Adobe Flash Player versions prior
                           to 23.0.0.205, 11.2.202.637 for Linux.

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https://helpx.adobe.com/content/help/en/security/products/flash-player/apsb16-36.html
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Adobe Security Bulletin APSB16-36

Security updates available for Adobe Flash Player

Release date: October 26, 2016

Vulnerability identifier: APSB16-36

Priority: 1

CVE number: CVE-2016-7855

Platform: Windows, Macintosh, Linux and Chrome OS

Summary

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

Adobe is aware of a report that an exploit for CVE-2016-7855 exists in
the wild, and is being used in limited, targeted attacks against users
running Windows versions 7, 8.1 and 10.

Affected Versions

Product 	Affected Versions 	Platform
Adobe Flash Player
Desktop Runtime 	23.0.0.185 and earlier 	 Windows and Macintosh

Adobe Flash Player
for Google Chrome 	23.0.0.185 and earlier 	 Windows, Macintosh,
                                                    Linux and Chrome OS
Adobe Flash Player
for Microsoft Edge and
Internet Explorer 11 	23.0.0.185 and earlier 	 Windows 10 and 8.1

Adobe Flash Player
for Linux 	        11.2.202.637 and earlier 	Linux

      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    Updated Versions   Platform    Priority rating   Availability

Adobe Flash Player
Desktop Runtime     23.0.0.205 	  Windows and Macintosh    1   Flash
                                                    Player Download Center

                                                 Flash Player Distribution

Adobe Flash Player
for Google Chrome 	23.0.0.205    Windows, Macintosh,
                                        Linux and Chrome OS    1 	Google
                                                           Chrome Releases
Adobe Flash Player
for Microsoft Edge
and Internet Explorer 11  23.0.0.205  Windows 10 and 8.1  1   Microsoft
                                                        Security Advisory

Adobe Flash Player
for Linux 	        11.2.202.643 	Linux 	3 	Flash Player
                                                         Download Center

      Adobe recommends users of the Adobe Flash Player Desktop Runtime
for Windows and Macintosh update to 23.0.0.205 via the update mechanism
within the product [1], or by visiting the Adobe Flash Player Download
Center.
      Adobe recommends users of Adobe Flash Player for Linux update
to Adobe Flash Player 11.2.202.643 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 23.0.0.205 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 23.0.0.205.
Please visit the Flash Player Help page for assistance in installing
Flash Player.

[1] Users of Flash Player 11.2.x or later for Windows, or Flash Player
11.3.x or later for Macintosh, 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

These updates resolve a use-after-free vulnerability that could lead to
code execution (CVE-2016-7855).

Acknowledgments
Adobe would like to thank Neel Mehta and Billy Leonard from Google's
Threat Analysis Group for reporting CVE-2016-7855 and for working with
Adobe to help protect our customers.


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