The extract function in PHP before 5.2.15 does not prevent use of the
EXTR_OVERWRITE parameter to overwrite (1) the GLOBALS superglobal
array and (2) the this variable, which allows context-dependent
attackers to bypass intended access restrictions by modifying data
structures that were not intended to depend on external input, a
related issue to CVE-2005-2691 and CVE-2006-3758.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20101213 Re: Issues without CVE names in PHP 5.3.4/5.2.15 release
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the CVE-ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
This is an entry on the CVE
list, which standardizes names for security