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    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.

    Published:Aug 30, 2007
    Last Modified:Apr 23, 2026
    EPS:Sep 4, 2007
    EPSS Score:0.03881
    CVSS Score:7.5

    Affected Products

    Vendor
    Php
    Product
    Php

    Exploits

    http://cvs.php.net/viewvc.cgi/php-src/ext/standard/string.c?r1=1.445.2.14.2.58&r2=1.445.2.14.2.59http://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

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    References

    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://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
    http://secunia.com/advisories/26642
    http://secunia.com/advisories/26838
    http://secunia.com/advisories/27102
    http://secunia.com/advisories/27864
    http://secunia.com/advisories/28658
    http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
    http://www.php.net/ChangeLog-5.php#5.2.4
    http://www.php.net/releases/5_2_4.php
    http://www.ubuntu.com/usn/usn-549-2
    https://issues.rpath.com/browse/RPL-1702
    https://launchpad.net/bugs/173043
    https://usn.ubuntu.com/549-1/
    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://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
    http://secunia.com/advisories/26642
    http://secunia.com/advisories/26838
    http://secunia.com/advisories/27102
    http://secunia.com/advisories/27864
    http://secunia.com/advisories/28658
    http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
    http://www.php.net/ChangeLog-5.php#5.2.4
    http://www.php.net/releases/5_2_4.php
    http://www.ubuntu.com/usn/usn-549-2
    https://issues.rpath.com/browse/RPL-1702
    https://launchpad.net/bugs/173043
    https://usn.ubuntu.com/549-1/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High