Security updates available for Flash Player | APSB18-25
Bulletin ID Date Published Priority
APSB18-25 August 14, 2018 2

Summary

Adobe has released security updates for Adobe Flash Player for Windows, macOS, Linux and Chrome OS. These updates address important vulnerabilities in Adobe Flash Player 30.0.0.134 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 30.0.0.134 and earlier versions Windows, macOS and Linux
Adobe Flash Player for Google Chrome 30.0.0.134 and earlier versions Windows, macOS, Linux and Chrome OS 
Adobe Flash Player for Microsoft Edge and Internet Explorer 11 30.0.0.134 and earlier versions Windows 10 and 8.1

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
Adobe Flash Player Desktop Runtime 30.0.0.154 Windows, macOS 2

Flash Player Download Center

Flash Player Distribution

Adobe Flash Player for Google Chrome 30.0.0.154 Windows, macOS, Linux, and Chrome OS  2 Google Chrome Releases
Adobe Flash Player for Microsoft Edge and Internet Explorer 11 30.0.0.154 Windows 10 and 8.1 2 Microsoft Security Advisory
Adobe Flash Player Desktop Runtime 30.0.0.154 Linux 3 Flash Player Download Center

Note:

  • Adobe recommends users of the Adobe Flash Player Desktop Runtime for Windows, macOS and Linux update to Adobe Flash Player 30.0.0.154 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 30.0.0.154 for Windows, macOS, 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 30.0.0.154.
  • 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
Out-of-bounds read Information Disclosure Important CVE-2018-12824
Security bypass Security Mitigation Bypass Important CVE-2018-12825
Out-of-bounds read Information Disclosure Important CVE-2018-12826
Out-of-bounds read Information Disclosure Important CVE-2018-12827
Use of a component with a known vulnerability Privilege Escalation Important CVE-2018-12828

Acknowledgments

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

  • Anonymous working with Trend Micro's Zero Day Initiative (CVE-2018-12824)
  • Chenming Xu and Dan Caselden, ICEBRG Gigamon (CVE-2018-12825)

  • Dor Hadad of Palo Alto Networks (CVE-2018-12826)

  • Mateusz Jurczyk and Natalie Silvanovich of Google Project Zero (CVE-2018-12827)

  • Kai Song from TenCent (CVE-2018-12828)