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Updated PHP packages that fix multiple security issues are now available for Red Hat Enterprise Linux 2.1. This update has been rated as having moderate security impact by the Red Hat Security Response Team. PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server. The phpinfo() PHP function did not properly sanitize long strings. An attacker could use this to perform cross-site scripting attacks against sites that have publicly-available PHP scripts that call phpinfo(). (CVE-2006-0996) The error handling output was found to not properly escape HTML output in certain cases. An attacker could use this flaw to perform cross-site scripting attacks against sites where both display_errors and html_errors are enabled. (CVE-2006-0208) A buffer overflow flaw was discovered in uw-imap, the University of Washington's IMAP Server. php-imap is compiled against the static c-client libraries from imap and therefore needed to be recompiled against the fixed version. (CVE-2005-2933) The wordwrap() PHP function did not properly check for integer overflow in the handling of the 'break' parameter. An attacker who could control the string passed to the 'break' parameter could cause a heap overflow. (CVE-2006-1990) Users of PHP should upgrade to these updated packages, which contain backported patches that resolve these issues.