Zero-Day Advisory

Fortinet Discovers Adobe Shockwave Player rcsL Atom Handling Memory Corruption Vulnerability


Fortinet's FortiGuard Labs has discovered a memory corruption vulnerability in Adobe Shockwave Player.
Adobe Shockwave is a multimedia platform for building interactive multimedia applications and video games. The content is developed with Adobe Director and published on the Internet. Such content can be viewed in a web browser on any computer with the Shockwave Player plug-in installed. Shockwave supports raster graphics, basic vector graphics, 3D graphics, audio, and an embedded scripting language called Lingo. According to Adobe, over 450 million Internet-enabled computers have Adobe Shockwave Player installed.
A memory corruption vulnerability has been discovered in Shockwave. This vulnerability is caused due to insufficient validation on the value of file offset inside 'rcsL' atom. It could potentially allow an attacker to take control of the affected system.


FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Released Oct 25, 2015

Users should apply the solution provided by Adobe.


This vulnerability was discovered by Honggang Ren of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.