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

                             CERT-Renater

                 Note d'Information No. 2018/VULN138
_____________________________________________________________________

DATE                : 11/04/2018

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Adobe Flash Player versions prior
                                        to 29.0.0.140.

=====================================================================
https://helpx.adobe.com/security/products/flash-player/apsb18-08.html

_____________________________________________________________________


Adobe Security Bulletin

Applies to: Flash Player

Last Published: April 11, 2018

Security updates available for Flash Player | APSB18-08
+-------------------------+--------------------------------+------------------+
|Bulletin ID              |Date Published                  |Priority
     |
+-------------------------+--------------------------------+------------------+
|APSB18-08                |April 10, 2018                  |2
     |
+-------------------------+--------------------------------+------------------+

Summary

Adobe has released security updates for Adobe Flash Player for Windows,
Macintosh, Linux and Chrome OS. These updates address critical
vulnerabilities in Adobe Flash Player 29.0.0.113 and earlier versions.
Successful exploitation could lead to arbitrary code execution in the
context of the current user.


Affected Product Versions

+-----------------------------------+-----------------+-----------------------+
|Product                            |Version          |Platform
     |
+-----------------------------------+-----------------+-----------------------+
|Adobe Flash Player Desktop Runtime |29.0.0.113 and   |Windows,
                                                          Macintosh and |
|                                   |earlier versions |Linux
     |
+-----------------------------------+-----------------+-----------------------+
|Adobe Flash Player for Google      |29.0.0.113 and   |Windows,
                                                         Macintosh,    |
|Chrome                             |earlier versions |Linux and Chrome
                                                                  OS   |
+-----------------------------------+-----------------+-----------------------+
|Adobe Flash Player for Microsoft   |29.0.0.113 and   |Windows 10 and
                                                               8.1     |
|Edge and Internet Explorer 11      |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     |29.0.0.140|Macintosh    |2       |
     |
|                    |          |             |        |Flash Player
     |
|                    |          |             |        |Distribution
     |
+--------------------+----------+-------------+--------+----------------------+
|                    |          |Windows,     |        |
     |
|Adobe Flash Player  |29.0.0.140|Macintosh,   |2       |Google Chrome
                                                          Releases|
|for Google Chrome   |          |Linux, and   |        |
     |
|                    |          |Chrome OS    |        |
     |
+--------------------+----------+-------------+--------+----------------------+
|Adobe Flash Player  |          |             |        |
     |
|for Microsoft Edge  |29.0.0.140|Windows 10   |2       |Microsoft
                                                        Security    |
|and Internet        |          |and 8.1      |        |Advisory
     |
|Explorer 11         |          |             |        |
     |
+--------------------+----------+-------------+--------+----------------------+
|Adobe Flash Player  |29.0.0.140|Linux        |3       |Flash Player
                                                        Download |
|Desktop Runtime     |          |             |        |Center
     |
+--------------------+----------+-------------+--------+----------------------+

Note:

  o Adobe recommends users of the Adobe Flash Player Desktop Runtime
    for Windows, Macintosh and Linux update to Adobe Flash Player
    29.0.0.140 via the update mechanism within the product [1] or by
    visiting the Adobe Flash Player Download Center.
  o Adobe Flash Player installed with Google Chrome will be
    automatically updated to the latest Google Chrome version, which
    will include Adobe Flash Player 29.0.0.140 for Windows, Macintosh,
    Linux and Chrome OS.
  o 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
    29.0.0.140.
  o 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 Category |Vulnerability Impact   |Severity   |CVE
                                                                Number |
+------------------------+-------------------------+-----------+--------------+
|Use-After-Free         |Remote Code Execution  |Critical
                                                         |CVE-2018-4932|
+------------------------+-------------------------+-----------+--------------+
|Out-of-bounds read     |Information Disclosure |Important
                                                         |CVE-2018-4933|
+------------------------+-------------------------+-----------+--------------+
|Out-of-bounds read     |Information Disclosure |Important
                                                         |CVE-2018-4934|
+------------------------+-------------------------+-----------+--------------+
|Out-of-bounds write    |Remote Code Execution  |Critical
                                                         |CVE-2018-4935|
+------------------------+-------------------------+-----------+--------------+
|Heap Overflow          |Information Disclosure |Important
                                                         |CVE-2018-4936|
+------------------------+-------------------------+-----------+--------------+
|Out-of-bounds write    |Remote Code Execution  |Critical
                                                         |CVE-2018-4937|
+------------------------+-------------------------+-----------+--------------+


Acknowledgments

Adobe would like to thank the following individuals and organizations
for reporting this issue and for working with Adobe to help protect our
customers:

  o Mateusz Jurczyk and Natalie Silvanovich of Google Project Zero
    (CVE-2018-4936, CVE-2018-4935, CVE-2018-4934, CVE-2018-4937)
  o willJ of Tencent PC Manager (CVE-2018-4933)
  o Lin Wang of Beihang University (CVE-2018-4932)

==========================================================
+ CERT-RENATER          | tel : 01-53-94-20-44           +
+ 23 - 25 Rue Daviel    | fax : 01-53-94-20-41           +
+ 75013 Paris           | email: cert@support.renater.fr +
==========================================================