Updated acroread packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 Extras. This update has been rated as having critical security impact by the Red Hat Security Response Team.
Adobe Reader allows users to view and print documents in Portable Document Format (PDF). This update fixes several vulnerabilities in Adobe Reader. These vulnerabilities are summarized on the Adobe Security Advisory APSB10-02 page listed in the References section. 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) Adobe have discontinued support for Adobe Reader 8 for Linux. All users of Adobe Reader are advised to install these updated packages, which contain Adobe Reader version 9.3, which is not vulnerable to these issues. All running instances of Adobe Reader must be restarted for the update to take effect.