CVE-2011-0752

Impact:
Low
Public Date:
2010-12-08
Bugzilla:
674699: CVE-2011-0752 php: extract() can overwrite $GLOBALS and $this when using EXTR_OVERWRITE

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2011-0752 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

We do not consider this flaw to be a security issue as it is only exploitable by the script author. No trust boundary is crossed.

This issue did not affect the versions of PHP as shipped with Red Hat Enterprise Linux 3, 4, or 5 (php). This issue was addressed in the php53 packages as shipped in Red Hat Enterprise Linux 5 before their first release in Red Hat Enterprise Linux 5.6, and it was addressed in the php package in Red Hat Enterprise Linux 6 via RHBA-2011:0615.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 2.6
Base Metrics AV:N/AC:H/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 6 php Will not fix
Red Hat Enterprise Linux 5 php Not affected
Red Hat Enterprise Linux 5 php53 Will not fix

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact Red Hat Product Security.

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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