A Vulnerability in Adobe Flash Player Could Allow for Remote Code Execution (APSB16-03)

ITS Advisory Number: 
2016-107 - UPDATED
Date(s) Issued: 
Tuesday, June 14, 2016
Date Updated: 
Friday, June 17, 2016
Subject: 
A Vulnerability in Adobe Flash Player Could Allow for Remote Code Execution (APSB16-03)
Overview: 

A vulnerability has been discovered in Adobe Flash Player that could allow for remote code execution. Adobe Flash Player is a widely distributed multimedia and application player used to enhance the user experience when visiting web pages or reading email messages. Successful exploitation of this vulnerabilities may cause a crash and allow an attacker to take control of the affected system.

June 17, 2016 - UPDATED OVERVIEW:

A vulnerability has been discovered in Adobe Flash Player that could allow for remote code execution. Adobe Flash Player is a widely distributed multimedia and application player used to enhance the user experience when visiting web pages or reading email messages. Successful exploitation of these vulnerabilities may cause a crash and allow an attacker to take control of the affected system

Systems Affected: 
  • Adobe Flash Player 21.0.0.242 and earlier versions for Windows, Macintosh, and Linux, and Chrome OS.

June 17, 2016 - UPDATED SYSTEM(S) AFFECTED:

  • Adobe Flash Player versions prior to 22.0.0.192 for Windows, Macintosh, and Linux, and Chrome OS.

RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
Medium
BUSINESS
Large and medium business entities: 
High
Small business entities: 
Medium
Home Users: 
Low
Description: 

Adobe Flash Player is prone to a vulnerability which could allow for remote code execution or denial of service conditions. Few details are currently available. More information should become available after Adobe releases the security update addressing this vulnerability as early as June 16.

June 17, 2016 UPDATED DESCRIPTION:

Multiple vulnerabilities have been discovered in Adobe Flash Player the most severe of which could allow for remote code execution. These vulnerabilities are as follows:

  • These updates resolve type confusion vulnerabilities that could lead to code execution (CVE-2016-4144, CVE-2016-4149).
  • These updates resolve use-after-free vulnerabilities that could lead to code execution (CVE-2016-4142, CVE-2016-4143, CVE-2016-4145, CVE-2016-4146, CVE-2016-4147, CVE-2016-4148).
  • These updates resolve heap buffer overflow vulnerabilities that could lead to code execution (CVE-2016-4135, CVE-2016-4136, CVE-2016-4138).
  • These updates resolve memory corruption vulnerabilities that could lead to code execution (CVE-2016-4122, CVE-2016-4123, CVE-2016-4124, CVE-2016-4125, CVE-2016-4127, CVE-2016-4128, CVE-2016-4129, CVE-2016-4130, CVE-2016-4131, CVE-2016-4132, CVE-2016-4133, CVE-2016-4134, CVE-2016-4137, CVE-2016-4141, CVE-2016-4150, CVE-2016-4151, CVE-2016-4152, CVE-2016-4153, CVE-2016-4154, CVE-2016-4155, CVE-2016-4156, CVE-2016-4166, CVE-2016-4171).
  • These updates resolve a vulnerability in the directory search path used to find resources that could lead to code execution (CVE-2016-4140).
  • These updates resolve a vulnerability that could be exploited to bypass the same-origin-policy and lead to information disclosure (CVE-2016-4139).

 

Successful exploitation of these vulnerabilities may allow for remote code execution in the context of the current user. Failed exploit attempts will likely result in denial of service conditions.

Actions: 
  • After appropriate testing, install updates provided by Adobe to the affected systems.
  • Consider disabling Adobe Flash Player until the patch is applied. 
  • Remind users not to visit websites or follow links provided by unknown or untrusted sources.
  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.