National Vulnerability Database (NVD) National Vulnerability Database (CVE-2007-4657)

Mission and Overview

NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

Resource Status

NVD contains:

CVE Vulnerabilities: 38426
Checklists: 128
US-CERT Alerts: 179
US-CERT Vuln Notes: 2345
OVAL Queries: 2517
CPE Names: 17819

Last updated: Tue Aug 25 13:00:12 EDT 2009

CVE Publication rate: 17.23

Email List

NVD provides four mailing lists to the public. For information and subscription instructions please visit NVD Mailing Lists

Workload Index

Vulnerability Workload Index: 10.27

About Us

NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

NIST Security Configuration Checklists - CSD

National Cyber-Alert System

Vulnerability Summary for CVE-2007-4657

Original release date:09/04/2007

Last revised:09/05/2008

Source: US-CERT/NIST

Overview

Multiple integer overflows in PHP 4 before 4.4.8, and PHP 5 before 5.2.4, allow remote attackers to obtain sensitive information (memory contents) or cause a denial of service (thread crash) via a large len value to the (1) strspn or (2) strcspn function, which triggers an out-of-bounds read. NOTE: this affects different product versions than CVE-2007-3996.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:7.5 (HIGH) (AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)

Impact Subscore: 6.4

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

Vendor Statments (disclaimer)

Official Statement from Red Hat (09/05/2007): The only effect of this bug is to cause the process to read from a random segment of memory, if a large "length" parameter is passed to the strspn/strcspn function, which is under the control of the script author. This bug has no security impact.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

External Source: CONFIRM

Name: http://www.php.net/ChangeLog-5.php#5.2.4

Type: Patch Information

Hyperlink:http://www.php.net/ChangeLog-5.php#5.2.4

External Source: MISC

Name: http://secweb.se/en/advisories/php-strcspn-information-leak-vulnerability/

Type: Patch Information

Hyperlink:http://secweb.se/en/advisories/php-strcspn-information-leak-vulnerability/

External Source: SECUNIA

Name: 26642

Type: Advisory; Patch Information

Hyperlink:http://secunia.com/advisories/26642