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PHP "_ecalloc" Integer Overflow Vulnerability
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Secunia Advisory:
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SA22280
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Release Date:
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2006-10-05
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Popularity:
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10,150 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Workaround
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| Software: | PHP 5.1.x
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| CVE reference: | CVE-2006-4812
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Description:
A vulnerability has been reported in PHP, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.
The vulnerability is caused due to an integer overflow within the "_ecalloc" function. This can potentially be exploited to execute arbitrary code via specially crafted requests if a PHP script allocates memory based on attacker supplied data.
Solution:
The vulnerability has been fixed in the CVS repository:
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_alloc.c?r1=1.161&r2=1.162
Provided and/or discovered by:
Disclosed via vendor CVS commit.
Original Advisory:
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_alloc.c?r1=1.161&r2=1.162
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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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