Vulnerability Spotlight: Google Chrome PDFium memory corruption vulnerability

Summary: Aleksandar Nikolic of Cisco Talos discovered a memory corruption vulnerability in PDFium, the PDF renderer inside Google Chrome, in the way version 80.0.3987.158 executes JavaScript regular expressions. A victim must open a malicious web page or document to trigger it, and the flaw could allow an adversary to achieve arbitrary code execution inside the browser; Cisco Talos worked with Google to resolve the issue and make an update available.
What's compelling: Arbitrary code execution inside the browser means a single opened PDF or page can hand an attacker the same reach as the user, and the trigger here is a JavaScript regular expression in a component most users never think about.

Read the original at Cisco Talos ↗

Topics: Cloud Security
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