Adobe Reader 8.1.7 is vulnerable to critical security flaws and should no
longer be used. A specially-crafted PDF file could cause Adobe Reader to
crash or, potentially, execute arbitrary code as the user running Adobe
Reader when opened. (CVE-2009-4324, CVE-2009-3953, CVE-2009-3954,
CVE-2009-3955, CVE-2009-3959, CVE-2009-3956)
