Advisory Details

August 17th, 2015

PHP Regular Expression Uninitialized Pointer Information Disclosure Vulnerability

CVE ID
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	PHP
AFFECTED PRODUCTS	PHP
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of PHP. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of invalid regular expressions. The issue lies in the failure to properly initialize pointers in a buffer while executing a regular expression. An attacker can leverage this to disclose the contents of any address in memory in the context of the process running PHP.
ADDITIONAL DETAILS	PHP has issued an update to correct this vulnerability. More details can be found at: http://vcs.pcre.org/pcre/code/trunk/pcre_exec.c?r1=1502&r2=1510
DISCLOSURE TIMELINE	2014-10-13 - Vulnerability reported to vendor 2015-08-17 - Coordinated public release of advisory
CREDIT	Anonymous

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