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CVE-2007-4657 Detail


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.


CVSS 3.x Severity and Metrics:

Base Score:  N/A
NVD score not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

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/ Third Party Advisory 
http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.335136 Mailing List  Third Party Advisory 
http://www.debian.org/security/2008/dsa-1444 Third Party Advisory 
http://www.debian.org/security/2008/dsa-1578 Third Party Advisory 
http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml Third Party Advisory 
http://www.php.net/ChangeLog-4.php Vendor Advisory 
http://www.php.net/ChangeLog-5.php#5.2.4 Patch  Vendor Advisory 
http://www.php.net/releases/4_4_8.php Vendor Advisory 
http://www.php.net/releases/5_2_4.php Vendor Advisory 
http://www.trustix.org/errata/2007/0026/ Broken Link 
http://www.ubuntu.com/usn/usn-549-2 Broken Link 
http://www.vupen.com/english/advisories/2007/3023 Third Party Advisory 
http://www.vupen.com/english/advisories/2008/0059 Third Party Advisory 
https://exchange.xforce.ibmcloud.com/vulnerabilities/36388 Third Party Advisory  VDB Entry 
https://exchange.xforce.ibmcloud.com/vulnerabilities/39399 Third Party Advisory  VDB Entry 
https://issues.rpath.com/browse/RPL-1693 Broken Link 
https://issues.rpath.com/browse/RPL-1702 Broken Link 
https://launchpad.net/bugs/173043 Third Party Advisory 
https://usn.ubuntu.com/549-1/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer cwe source acceptance level NIST  
CWE-189 Numeric Errors cwe source acceptance level NIST  

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Change History

4 change records found show changes

Quick Info

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