CVE-2011-0752

Description

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.

References

Link	Tags
http://marc.info/?l=bugtraq&m=133469208622507&w=2	vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/65432	vdb entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12016	vdb entry signature
http://www.php.net/ChangeLog-5.php
http://www.php.net/archive/2010.php#id2010-12-10-1
http://www.php.net/releases/5_2_15.php
http://www.openwall.com/lists/oss-security/2010/12/13/4	mailing list

Frequently Asked Questions

What is the severity of CVE-2011-0752?: CVE-2011-0752 has been scored as a medium severity vulnerability.
How to fix CVE-2011-0752?: To fix CVE-2011-0752, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-0752 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2011-0752 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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Description

Category

CWE-20 – Improper Input Validation

References

Frequently Asked Questions