Adobe Flash Player Critical Security Update Released

Adobe has released Version 31.0.0.153 of Adobe Flash Player and AIR for Windows, macOS, Linux and Chrome OS. These updates address a critical vulnerability in Adobe Flash Player 31.0.0.148 and earlier versions.  Successful exploitation could lead to arbitrary code execution in the context of the current user.
Technical details about this vulnerability are publicly available. 

Release date:  November 20, 2018
Vulnerability identifier: APSB18-44
Platform:  Windows, Macintosh, Linux and Chrome OS

Vulnerability details

Vulnerability Category	Vulnerability Impact	Severity	CVE Number
Type Confusion	Arbitrary code execution	Critical	CVE-2018-15981

Update:

• With the option to 'Allow Adobe to install updates', the update will be automatic. Without that setting enabled, either install the update via the update mechanism when prompted or via the Download Center*.
• Windows 7 and earlier:  Installation links for Windows 7 and earlier are provided by Adobe at Installation problems | Flash Player | Windows 7 and earlier: 
• Flash Player for Internet Explorer - ActiveX 
• Flash Player for Firefox/Pale Moon - NPAPI
• Flash Player for Opera and Chromium-based browsers - PPAPI
• Microsoft Edge and Internet Explorer 11:  Adobe Flash Player will be automatically updated to the latest version for Windows 8.1 and 10.
• Google Chrome:  Adobe Flash Player will be automatically updated to the latest Google Chrome version.
• Flash Player Uninstaller:  http://download.macromedia.com/get/flashplayer/current/support/uninstall_flash_player.exe
• Adobe AIR:  Adobe - Adobe AIR

*Important Note:  Downloading the update from the Adobe Flash Player Download Center link includes a pre-checked option to install unnecessary extras, such as McAfee Scan Plus or Google Drive.  If you use the download center, uncheck any unnecessary extras that you do not want.  They are not needed for the Flash Player update.

Verify Installation

To verify the Adobe Flash Player version number installed on your computer, go to the About Flash Player page, or right-click on content running in Flash Player and select "About Adobe Flash Player" from the menu. 

Do this for each browser installed on your computer.

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

References

• Adobe Priority Ratings
• AIR Download Center 
• Installing and Updating Flash Player - FAQ
• Release Notes
• Security Bulletin
• PSIRT

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