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Source: USCERT

Adobe Acrobat Reader is software designed to view Portable Document Format (PDF) files. Adobe also distributes the Adobe Acrobat Plug-In to allow users to view PDF files inside of a web browser. Adobe Reader and Acrobat contain a buffer overflow vulnerability in the handling of JBIG2 streams.

By convincing a user to open a malicious PDF file, an attacker may be able to execute code or cause a vulnerable PDF viewer to crash. The PDF could be emailed as an attachment or hosted on a website.

Solution

  1. Disable JavaScript in Adobe Reader and Acrobat
  2. Prevent Internet Explorer from automatically opening PDF documents
  3. Disable the displaying of PDF documents in the web browser
  4. Do not access PDF documents from untrusted source
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