CVE-2007-4661
HIGH severity · CVSS 7.5 · Memory corruption
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)2%
AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://secunia.com/advisories/26642 ↗
Additional information
- NVD record
- http://secunia.com/advisories/26642Patch
- http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
- 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://cvs.php.net/viewvc.cgi/php-src/ext/standard/string.c?r1=1.445.2.14.2.58&r2=1.445.2.14.2.59Exploit