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out-of-bounds read when using a malformed url-encoded string
In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17, and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), the urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.
Upgrade to PHP 7.2.30 or above, 7.3.17 or above, or 7.4.5 or above.
Direct link to CVE-2020-7067 >
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