Computer Security
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PHP array_user_key_compare() function memory corruption
SecurityVulns ID:7422
Threat Level:
Description:Reference are left to freed buffer. It may lead to de-allocated memory space usage.
Affected:PHP : PHP 4.4
 PHP : PHP 5.2
CVE:CVE-2007-1484 (The array_user_key_compare function in PHP 4.4.6 and earlier, and 5.x up to 5.2.1, makes erroneous calls to zval_dtor, which triggers memory corruption and allows local users to bypass safe_mode and execute arbitrary code via a certain unset operation after array_user_key_compare has been called.)
Original documentdocumentPHP-SECURITY, MOPB-24-2007:PHP array_user_key_compare() Double DTOR Vulnerability (17.03.2007)
Files:PHP 4/5 - array_user_key_compare() ZVAL dtor exploit

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