Log Message:
adobe-flash-player: update to 28.0.0.161.

Upstream announcement:

 https://helpx.adobe.com/security/products/flash-player/apsb18-03.html

Adobe Security Bulletin
 Security updates available for Flash Player | APSB18-03

 Summary
  Adobe has released security updates for Adobe Flash Player for Windows,
  Macintosh, Linux and Chrome OS. These updates address critical
  vulnerabilities that could lead to remote code execution in Adobe Flash
  Player 28.0.0.137 and earlier versions.  Successful exploitation could
  potentially allow an attacker to take control of the affected system.

  Adobe is aware of a report that an exploit for CVE-2018-4878 exists in
  the wild, and is being used in limited, targeted attacks against Windows
  users.  These attacks leverage Office documents with embedded malicious
  Flash content distributed via email.