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PHP "htmlentities()" and "htmlspecialchars()" Buffer Overflows
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Secunia Advisory:
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SA22653
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Release Date:
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2006-11-02
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Last Update:
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2006-11-03
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Popularity:
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26,247 views
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Critical:
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Highly 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 Patch
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| Software: | PHP 4.0.x
PHP 4.1.x
PHP 4.2.x
PHP 4.3.x
PHP 4.4.x
PHP 5.0.x
PHP 5.1.x
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| CVE reference: | CVE-2006-5465
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Description:
Some vulnerabilities have 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 vulnerabilities are caused due to boundary errors within the "htmlentities()" and "htmlspecialchars()" functions. If a PHP application uses these functions to process user-supplied input, this can be exploited to cause a heap-based buffer overflow by passing specially crafted data to the affected application.
Successful exploitation may allow execution of arbitrary code, but requires that the UTF-8 character set is selected.
Solution:
Update to version 5.2.0.
Provided and/or discovered by:
Stefan Esser
Changelog:
2006-11-03: Added additional information provided by the Hardened-PHP Project. Added link to Hardened-PHP Project advisory. Updated "Solution" Section.
Original Advisory:
http://www.ubuntu.com/usn/usn-375-1
Other References:
http://www.hardened-php.net/advisory_132006.138.html
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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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