CVE-2007-4661

Description

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.

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

https://issues.rpath.com/browse/RPL-1702

https://launchpad.net/bugs/173043

https://usn.ubuntu.com/549-1/

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

Details

Risk Information

CVSS v2