CRITICAL Adobe Systems Incorporated Vulnerability Alert

Product:

Adobe Flash Player

Summary

A use-after-free vulnerability exists in the ByteArray class of the ActionScript 3 implementation in Adobe Flash Player. This vulnerability affects multiple versions on Windows, OS X, and Linux, allowing remote attackers to execute arbitrary code or cause a denial of service through crafted Flash content. It was actively exploited in the wild in July 2015.

Details

Severity Base Score CVE
CRITICAL 9.8 CVE-2015-5119

Exploitation

To exploit this vulnerability, an attacker can create malicious Flash content that overrides the valueOf function within the ByteArray class. When a user interacts with this content, it can lead to memory corruption, allowing the attacker to execute arbitrary code on the victim’s system. This can be done without any user authentication or interaction, making it particularly dangerous.

Affected Products

  • Adobe Flash Player 13.x through 13.0.0.296 on Windows and OS X
  • Adobe Flash Player 14.x through 18.0.0.194 on Windows and OS X
  • Adobe Flash Player 11.x through 11.2.202.468 on Linux

Mitigation

The impacted product is no longer supported and has reached end-of-life status. Users are strongly advised to disconnect the product from their systems if it is still in use to prevent potential exploitation.

References