// For flags

CVE-2007-4661

php size calculation in chunk_split

Severity Score

7.5
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

La función chunk_split en string.c en PHP 5.2.3 no calcula adecuadamente el tamaño de búfer necesario debido a la pérdida de precisión cuando se realizan operaciones de entero con números con punto flotante, lo cual tiene vectores de ataque e impacto desconocido, posiblemente como resultado de un desbordamiento de búfer basado en pila. NOTA: esto puede ser debido a un parche incompleto para CVE-2007-2872.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2007-09-04 CVE Reserved
  • 2007-09-04 CVE Published
  • 2024-08-07 CVE Updated
  • 2024-08-07 First Exploit
  • 2024-08-15 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-399: Resource Management Errors
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 5.2.3
Search vendor "Php" for product "Php" and version "5.2.3"
-
Affected