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PHP "wordwrap()" Buffer Overflow Vulnerability
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Secunia Advisory:
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SA19803
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Release Date:
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2006-04-25
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Last Update:
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2006-08-03
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Popularity:
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14,186 views
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Critical:
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Less critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | PHP 4.3.x
PHP 4.4.x
PHP 5.0.x
PHP 5.1.x
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| CVE reference: | CVE-2006-1990
CVE-2006-1991
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Description:
Leon Juranic has discovered a vulnerability in PHP, which potentially can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the PHP "wordwrap()" function. This can be exploited to cause a heap-based buffer overflow via overly long strings passed to the function.
The vulnerability has been confirmed in version 5.1.2 and also reported in version 4.4.2. Other versions may also be affected.
Solution:
Update to version 4.4.3 or 5.1.3.
http://www.php.net/downloads.php
Ensure that PHP scripts do not call the "wordwrap()" PHP function with input originating from untrusted sources.
Provided and/or discovered by:
Leon Juranic
Changelog:
2006-04-26: Added CVE reference.
2006-04-27: Added CVE reference.
2006-05-04: Updated "Solution" section.
2006-08-03: Updated "Solution" section.
Original Advisory:
http://www.infigo.hr/hr/in_focus/advisories/INFIGO-2006-04-02
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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