Parser vulnerabilities in common software packages such as Adobe Acrobat Reader pose a significant security risk to large portions of the internet. The fact that these software packages typically have a large footprints often gives attackers a broad attack surface they can potentially leverage for malicious purposes. Thus, identifying vulnerabilities and responsibly disclosing them is critical to eliminating attack vectors that may otherwise be exploited.
Today, Talos is disclosing a vulnerability that has been identified in Adobe Acrobat Reader DC. The vulnerability, if exploited, could lead to arbitrary code execution on affected devices. As part of the coordinated effort to responsibly disclose the vulnerability, Adobe has released a software update that addresses the vulnerability. Additionally, Talos has developed Snort rules that detect attempts to exploit the flaw.