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Last updated: 2/13/2016 4:19:39 PM

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Vulnerability Summary for CVE-2007-4887

Original release date: 09/13/2007
Last revised: 03/07/2011


The dl function in PHP 5.2.4 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a long string in the library parameter. NOTE: there are limited usage scenarios under which this would be a vulnerability.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 MEDIUM
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Mandriva (09/18/2007)
Because the argument passed to the dl() function are always under the control of the author, Mandriva does not consider this a security issue.
Official Statement from Red Hat (09/14/2007)
The argument passed to the dl() function must always be under the control of the script author. We therefore do not consider this to be a security issue.

References to Advisories, Solutions, and Tools

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External Source: VUPEN
Name: ADV-2007-3825
External Source: VUPEN
Name: ADV-2008-0398
External Source: CONFIRM
Name: http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0242
External Source: SREASON
Name: 3133
External Source: HP
Name: HPSBUX02308
External Source: OVAL
Name: oval:org.mitre.oval:def:5767
External Source: BUGTRAQ
Name: 20070910 PHP <=5.2.4 open_basedir bypass & code exec & denial of service
External Source: HP
Name: HPSBUX02332
External Source: CONFIRM
Name: http://www.php.net/releases/5_2_5.php
External Source: GENTOO
Name: GLSA-200710-02
External Source: APPLE
Name: APPLE-SA-2008-03-18
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-1943
External Source: BID
Name: 26403
External Source: VUPEN
Name: ADV-2008-0924
External Source: CONFIRM
Name: http://docs.info.apple.com/article.html?artnum=307562
External Source: CONFIRM
Name: http://www.php.net/ChangeLog-5.php#5.2.5
External Source: BUGTRAQ
Name: 20070910 /* PHP <=5.2.4 open_basedir bypass & code exec & denial of service errata ... working on windows too .. */

References to Check Content

Identifier: oval:org.mitre.oval:def:5767
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:php:php:5.2.4 and previous versions

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

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