// For flags

CVE-2007-4840

 

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

PHP 5.2.4 and earlier allows context-dependent attackers to cause a denial of service (application crash) via (1) a long string in the out_charset parameter to the iconv function; or a long string in the charset parameter to the (2) iconv_mime_decode_headers, (3) iconv_mime_decode, or (4) iconv_strlen function. NOTE: this might not be a vulnerability in most web server environments that support multiple threads, unless these issues can be demonstrated for code execution.

PHP 5.2.4 y anteriores permite a usuarios locales o remotos dependiendo del contexto provocar una denegación de serviciO (caída de aplicación) mediante (1) una cadena larga en el parámetro out_charset para la función iconf; o una cadena larga en el parámetro charset para las funciones (2) iconv_mime_decode_headers, (3) iconv_mime_decode, o (4) iconf_strlen. NOTA: esto no podrían ser una vulnerabilidad en la mayoría de los entornos de servidor web que soportan múltiples hilos, a no ser que se pueda demostrar que estos problemas permiten ejecución de código.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2007-09-12 CVE Reserved
  • 2007-09-12 CVE Published
  • 2024-08-07 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
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"
 <= 5.2.4
Search vendor "Php" for product "Php" and version " <= 5.2.4"
-
Affected