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PHP Multiple Vulnerabilities
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Secunia Advisory:
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SA19927
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Release Date:
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2006-05-04
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Last Update:
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2006-08-07
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Popularity:
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12,902 views
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Critical:
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Moderately critical
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Impact:
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Unknown
Security Bypass
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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 5.1.x
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| CVE reference: | CVE-2006-3016
CVE-2006-3017
CVE-2006-3018
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Description:
Multiple vulnerabilities have been reported in PHP, where some have unknown impacts and another can be exploited by malicious people to bypass certain security restrictions.
1) An offset/length parameter validation error exists in the "substr_compare()" function.
2) An unspecified error exists in the handling of certain characters in session names.
3) An unspecified error in the session extension can be exploited to cause a heap corruption.
4) An error in the "zend_hash_del_key_or_index()" function when deleting elements can e.g. be exploited to cause the "unset()" function to not unset variables properly by defining a parameter where the name is the hash value of the variable.
Successful exploitation may open up for vulnerabilities in various applications, but may require that "register_globals" is enabled depending on the application being targeted.
Many other issues, where some may be security related, have also been reported.
Solution:
Update to version 5.1.4.
http://www.php.net/downloads.php
Provided and/or discovered by:
Reported by the vendor.
4) Stefan Esser, Hardened-PHP Project
Changelog:
2006-05-05: Vendor issues version 5.1.4 due to major bugs in version 5.1.3. Updated "Solution" section.
2006-06-20: Added CVE references.
2006-08-07: Added additional information provided by Stefan Esser.
Original Advisory:
PHP Group:
http://www.php.net/release_5_1_3.php
http://www.php.net/release_5_1_4.php
Hardened-PHP Project:
http://www.hardened-php.net/hphp/zend_hash_del_key_or_index_vulnerability.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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