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PHP "FILTER_VALIDATE_EMAIL" Filter Newline Injection

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Release Date:  2007-04-09    Last Update:  2007-06-01    Views:  18,099

Secunia Advisory SA24824

Where:

From remote

Impact:

Security Bypass

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Stefan Esser has reported a vulnerability in PHP, which can be exploited by malicious people to bypass certain security restrictions.

The vulnerability is caused due to the use of an incorrect regular expression within the "FILTER_VALIDATE_EMAIL" filter of the ext/filter extension. This can be exploited to inject newlines via specially crafted email addresses, which may allow mail header injection.

The vulnerability is reported in PHP 5.2.0 and 5.2.1. Other versions may also be affected.


Solution:
Update to version 5.2.3.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Stefan Esser

Original Advisory:
PHP:
http://www.php.net/releases/5_2_3.php

http://www.php-security.org/MOPB/PMOPB-45-2007.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: PHP "FILTER_VALIDATE_EMAIL" Filter Newline Injection

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