Solution to the overflow problem of PHP original HTML encoder

In PHP5.1.6, 4.4.4 and previous versions, a possible buffer overflow may be triggered when the UTF-8 encoding is selected when searching for the associated character encoding for "htmlspecialchars () and Htmlentities ()".

"While we are were searching for a hole in Htmlspecialchars () and htmlentities () to bypass the encoding of certain chars to ex Ploit a possible eval () injection hole in another application we discovered that implementation contains a possible BU Fferoverflow that can being triggered the UTF-8 charset is selected.

The latest release of PHP5 version 5.2 has fixed this error, but the problem still exists in the PHP4.4 version. All information can be found in the full vulnerability.