Adobe Reader allows users to view and print documents in Portable DocumentFormat (PDF).Multiple security flaws were discovered in Adobe Reader. A speciallycrafted PDF file could cause Adobe Reader to crash or, potentially, executearbitrary code as the user running Adobe Reader when opened.(CVE-2009-0198, CVE-2009-0509, CVE-2009-0510, CVE-2009-0511, CVE-2009-0512,CVE-2009-0888, CVE-2009-0889, CVE-2009-1855, CVE-2009-1856, CVE-2009-1857,CVE-2009-1858, CVE-2009-1859, CVE-2009-1861, CVE-2009-2028)All Adobe Reader users should install these updated packages. They containAdobe Reader version 8.1.6, which is not vulnerable to these issues. Allrunning instances of Adobe Reader must be restarted for the update to takeeffect.