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Vulnerability Details : CVE-2007-4661

The chunk_split function in string.c in PHP 5.2.3 does not properly calculate the needed buffer size due to precision loss when performing integer arithmetic with floating point numbers, which has unknown attack vectors and impact, possibly resulting in a heap-based buffer overflow. NOTE: this is due to an incomplete fix for CVE-2007-2872.
Publish Date : 2007-09-04 Last Update Date : 2008-09-05
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Overflow
CWE ID 399

- Vendor Statements

Not vulnerable. Red Hat did not include an incomplete fix for CVE-2007-2872 for PHP in Red Hat Enterprise Linux or Red Hat Application Stack.
Source: Redhat
Not vulnerable. Mandriva has not issued an update to date to fix CVE-2007-2872 and the updates in progress are using a correct fix.
Source: Mandriva

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate 2007-08-30 2007-08-30
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-4661 oval:org.opensuse.security:def:20074661 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-4661

# Product Type Vendor Product Version Update Edition Language
1 Application PHP PHP 5.2.3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
PHP PHP 1

- References For CVE-2007-4661

http://secunia.com/advisories/27864
SECUNIA 27864
http://secunia.com/advisories/27102
SECUNIA 27102
http://secunia.com/advisories/28658
SECUNIA 28658
http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
GENTOO GLSA-200710-02
http://www.ubuntulinux.org/support/documentation/usn/usn-549-1
UBUNTU USN-549-1
http://www.ubuntu.com/usn/usn-549-2
UBUNTU USN-549-2
https://issues.rpath.com/browse/RPL-1702 CONFIRM
https://launchpad.net/bugs/173043 CONFIRM
http://cvs.php.net/viewvc.cgi/php-src/ext/standard/string.c?r1=1.445.2.14.2.58&r2=1.445.2.14.2.59
http://www.php.net/ChangeLog-5.php#5.2.4 CONFIRM
http://secunia.com/advisories/26642
SECUNIA 26642
http://www.php.net/releases/5_2_4.php CONFIRM
http://secunia.com/advisories/26838
SECUNIA 26838
http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
SUSE SUSE-SA:2008:004

- Metasploit Modules Related To CVE-2007-4661

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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