Vulnerability Note VU#479900

PHP getSymbol vulnerability allows denial of service

Original Release date: 30 Nov 2010 | Last revised: 30 Nov 2010


PHP fails to properly sanitize input passed to the getSymbol function in a way that could allow and attacker to cause a segmentation fault.


PHP is a scripting language that is designed for web-based applications and can be embedded directly into HTML.

The getSymbol function in PHP versions prior to 5.3.3 revision 305571 contains an integer overflow vulnerability. For more information about this issue, see the PHP CVS log.


A remote attacker could cause a segmentation fault in PHP, leading to a denial of service.



PHP 5.3.3 revision 305571 was released to address this vulnerability.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
The PHP GroupAffected-30 Nov 2010
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



Thanks to Maksymilian Arciemowicz for reporting this vulnerability.

This document was written by Michael Orlando.

Other Information

  • CVE IDs: Unknown
  • Date Public: 19 Nov 2010
  • Date First Published: 30 Nov 2010
  • Date Last Updated: 30 Nov 2010
  • Severity Metric: 5.04
  • Document Revision: 9


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