National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2007-4657 Detail

Description

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.

Source:  MITRE
Description Last Modified:  09/04/2007

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

Vendor Statements (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

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Hyperlink Resource
http://secweb.se/en/advisories/php-strcspn-information-leak-vulnerability/ Exploit Patch
http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.335136
http://www.debian.org/security/2008/dsa-1444
http://www.debian.org/security/2008/dsa-1578
http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
http://www.php.net/ChangeLog-4.php
http://www.php.net/ChangeLog-5.php#5.2.4 Patch
http://www.php.net/releases/4_4_8.php
http://www.php.net/releases/5_2_4.php
http://www.trustix.org/errata/2007/0026/
http://www.ubuntu.com/usn/usn-549-2
http://www.ubuntulinux.org/support/documentation/usn/usn-549-1
http://www.vupen.com/english/advisories/2007/3023
http://www.vupen.com/english/advisories/2008/0059
https://exchange.xforce.ibmcloud.com/vulnerabilities/36388
https://exchange.xforce.ibmcloud.com/vulnerabilities/39399
https://issues.rpath.com/browse/RPL-1693
https://issues.rpath.com/browse/RPL-1702
https://launchpad.net/bugs/173043

Technical Details

Vulnerability Type (View All)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2007-4657
NVD Published Date:
09/04/2007
NVD Last Modified:
07/28/2017