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Last updated: 5/26/2016 2:28:13 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2006-1549

Original release date: 04/10/2006
Last revised: 08/23/2011


PHP 4.4.2 and 5.1.2 allows local users to cause a crash (segmentation fault) by defining and executing a recursive function. NOTE: it has been reported by a reliable third party that some later versions are also affected.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 2.1 LOW
Impact Subscore: 2.9
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service


Upgrade to PHP 5.1.3-RC3

Vendor Statements (disclaimer)

Official Statement from Red Hat (04/16/2007)
The PHP interpreter does not offer a reliable "sandboxed" security layer (as found in, say, a JVM) in which untrusted scripts can be run; any script run by the PHP interpreter must be trusted with the privileges of the interpreter itself. We therefore do not classify this issue as security-sensitive since no trust boundary is crossed.

References to Advisories, Solutions, and Tools

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External Source: SREASON
Name: 2312
External Source: VUPEN
Name: ADV-2006-1290
Type: Advisory
External Source: BID
Name: 22766
External Source: SECTRACK
Name: 1015880
External Source: SREASONRES
Name: 20060408 function *() php/apache Crash PHP 4.4.2 and 5.1.2
External Source: BUGTRAQ
Name: 20060414 Re: Re: function *() php/apache Crash PHP 4.4.2 and 5.1.2
External Source: BUGTRAQ
Name: 20060412 Re: function *() php/apache Crash PHP 4.4.2 and 5.1.2
External Source: BUGTRAQ
Name: 20060409 function *() php/apache Crash PHP 4.4.2 and 5.1.2
External Source: MISC
Name: http://www.php-security.org/MOPB/MOPB-02-2007.html
External Source: XF
Name: php-function-dos(25704)
External Source: BUGTRAQ
Name: 20060410 Re: function *() php/apache Crash PHP 4.4.2 and 5.1.2
External Source: SREASON
Name: 676

Vulnerable software and versions

+ Configuration 1
+ OR
cpe:/a:php:php:4.4.2 and previous versions
cpe:/a:php:php:5.1.2 and previous versions

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
  • Resource Management Errors (CWE-399)