CVE-2018-5158

Name of the Vulnerable Software and Affected Versions Firefox ESR versions prior to 52.8 Firefox versions prior to 60 PDF.js versions prior to 2.0.550

Description The issue is related to errors in code generation management in the PDF Viewer component of Firefox ESR and Firefox browsers. It allows a remote attacker to execute arbitrary code using a specially crafted PDF file. The PDF viewer does not sufficiently sanitize PostScript calculator functions, enabling malicious JavaScript to be injected through a crafted PDF file. This JavaScript can then be run with the permissions of the PDF viewer by its worker.

Recommendations For Firefox ESR versions prior to 52.8, update to version 52.8 or later. For Firefox versions prior to 60, update to version 60 or later. For PDF.js versions prior to 2.0.550, update to version 2.0.550 or later.