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PHP 5.3.5 - 'grapheme_extract()' Null Pointer Dereference Denial of Service
🗓️ 17 Feb 2011 00:00:00Reported by Maksymilian ArciemowiczType 
exploitdb🔗 www.exploit-db.com👁 31 Views
source: https://www.securityfocus.com/bid/46429/info
PHP is prone to a denial-of-service vulnerability caused by a NULL-pointer dereference.
An attacker can exploit this issue to cause an appliation written in PHP to crash, denying service to legitimate users.
PHP 5.3.5 is vulnerable; other versions may also be affected.
The following proof-of-concept is available:
grapheme_extract('a',-1); Data
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17 Feb 2011 00:00Current
7.4High risk
Vulners AI Score7.4