PHP Memory Manager Sign Comparison Multiple Buffer Overflow Vulnerabilities
BID:23238
Info
PHP Memory Manager Sign Comparison Multiple Buffer Overflow Vulnerabilities
| Bugtraq ID: | 23238 |
| Class: | Boundary Condition Error |
| CVE: | |
| Remote: | Yes |
| Local: | Yes |
| Published: | Mar 31 2007 12:00AM |
| Updated: | Apr 02 2007 08:32PM |
| Credit: | Stefan Esser is credited with the discovery of these vulnerabilities. |
| Vulnerable: |
PHP PHP 5.2 |
| Not Vulnerable: |
PHP PHP 5.2.1 |
Discussion
PHP Memory Manager Sign Comparison Multiple Buffer Overflow Vulnerabilities
PHP is prone to multiple buffer-overflow vulnerabilities because the application fails to perform boundary checks before copying user-supplied data to insufficiently sized memory buffers.
An attacker can exploit these issues to execute arbitrary machine code in the context of the affected webserver. Failed exploit attempts will likely crash the webserver, denying service to legitimate users.
These issues affects PHP version 5.2.0.
PHP is prone to multiple buffer-overflow vulnerabilities because the application fails to perform boundary checks before copying user-supplied data to insufficiently sized memory buffers.
An attacker can exploit these issues to execute arbitrary machine code in the context of the affected webserver. Failed exploit attempts will likely crash the webserver, denying service to legitimate users.
These issues affects PHP version 5.2.0.
Exploit / POC
PHP Memory Manager Sign Comparison Multiple Buffer Overflow Vulnerabilities
Currently we are not aware of any exploits for these issues. If you feel we are in error or if you are aware of more recent information, please mail us at: mailto:[email protected].
Currently we are not aware of any exploits for these issues. If you feel we are in error or if you are aware of more recent information, please mail us at: mailto:[email protected].
Solution / Fix
PHP Memory Manager Sign Comparison Multiple Buffer Overflow Vulnerabilities
Solution:
The vendor released version 5.2.1 to address these issues. Please see the references for more information.
PHP PHP 5.2
Solution:
The vendor released version 5.2.1 to address these issues. Please see the references for more information.
PHP PHP 5.2
-
PHP PHP 5.2.1
http://www.php.net/downloads.php#v5
References
PHP Memory Manager Sign Comparison Multiple Buffer Overflow Vulnerabilities
References:
References:
- MOPB-44-2007:PHP 5.2.0 Memory Manager Signed Comparision Vulnerability (Stefan Esser)
- PHP 5.2.1 Release Announcement (PHP)
- PHP Homepage (PHP Group)