ESB-2017.3179 - [Win][Linux][Mac] Adobe Flash Player: Reduced security - Existing account 2017-12-13

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.3179
                 Regression patched in Adobe Flash Player
                             13 December 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Adobe Flash Player
Publisher:         Adobe
Operating System:  Windows
                   Mac OS
                   Linux variants
                   Chrome OS
Impact/Access:     Reduced Security -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-11305  

Original Bulletin: 
   https://helpx.adobe.com/security/products/flash-player/apsb17-42.html

- --------------------------BEGIN INCLUDED TEXT--------------------

Security updates available for Flash Player | APSB17-42
+-----------------------------------------------------------------------------+
|Bulletin ID            |Date Published                     |Priority         |
|-----------------------+-----------------------------------+-----------------|
|APSB17-42              |December 12, 2017                  |2                |
+-----------------------------------------------------------------------------+

Summary

Adobe has released a security update for Adobe Flash Player for Windows,
Macintosh, Linux and Chrome OS. This update addresses a regression that could
lead to the unintended reset of the global settings preference file.

Affected Product Versions

+-----------------------------------------------------------------------------+
|Product                            |Version          |Platform               |
|-----------------------------------+-----------------+-----------------------|
|Adobe Flash Player Desktop Runtime |27.0.0.187 and   |Windows, Macintosh     |
|                                   |earlier versions |                       |
|-----------------------------------+-----------------+-----------------------|
|Adobe Flash Player for Google      |27.0.0.187 and   |Windows, Macintosh,    |
|Chrome                             |earlier versions |Linux and Chrome OS    |
|-----------------------------------+-----------------+-----------------------|
|Adobe Flash Player for Microsoft   |27.0.0.187 and   |Windows 10 and 8.1     |
|Edge and Internet Explorer 11      |earlier versions |                       |
|-----------------------------------+-----------------+-----------------------|
|Adobe Flash Player Desktop Runtime |27.0.0.187 and   |Linux                  |
|                                   |earlier 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.

Solution

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

+-----------------------------------------------------------------------------+
|Product             |Version   |Platform     |Priority|Availability          |
|--------------------+----------+-------------+--------+----------------------|
|                    |          |             |        |Flash Player Download |
|Adobe Flash Player  |          |Windows,     |        |Center                |
|Desktop Runtime     |28.0.0.126|Macintosh    |2       |                      |
|                    |          |             |        |Flash Player          |
|                    |          |             |        |Distribution          |
|--------------------+----------+-------------+--------+----------------------|
|                    |          |Windows,     |        |                      |
|Adobe Flash Player  |28.0.0.126|Macintosh,   |2       |Google Chrome Releases|
|for Google Chrome   |          |Linux and    |        |                      |
|                    |          |Chrome OS    |        |                      |
|--------------------+----------+-------------+--------+----------------------|
|Adobe Flash Player  |          |             |        |                      |
|for Microsoft Edge  |28.0.0.126|Windows 10   |2       |Microsoft Security    |
|and Internet        |          |and 8.1      |        |Advisory              |
|Explorer 11         |          |             |        |                      |
|--------------------+----------+-------------+--------+----------------------|
|Adobe Flash Player  |28.0.0.126|Linux        |3       |Flash Player Download |
|Desktop Runtime     |          |             |        |Center                |
+-----------------------------------------------------------------------------+

Note:

  * Adobe recommends users of the Adobe Flash Player Desktop Runtime
    for Windows, Macintosh and Linux update to Adobe Flash Player 28.0.0.126
    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 28.0.0.126 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 28.0.0.126.
  * 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   |Vulnerability Impact                |Severity|CVE Number    |
|Category        |                                    |        |              |
|----------------+------------------------------------+--------+--------------|
|Business Logic  |Unintended reset of global settings |Moderate|CVE-2017-11305|
|Error           |preference file                     |        |              |
+-----------------------------------------------------------------------------+

- --------------------------END INCLUDED TEXT--------------------

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===========================================================================
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