// For flags

CVE-2019-11048

Temporary files are not cleaned after OOM when parsing HTTP request data

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In PHP versions 7.2.x below 7.2.31, 7.3.x below 7.3.18 and 7.4.x below 7.4.6, when HTTP file uploads are allowed, supplying overly long filenames or field names could lead PHP engine to try to allocate oversized memory storage, hit the memory limit and stop processing the request, without cleaning up temporary files created by upload request. This potentially could lead to accumulation of uncleaned temporary files exhausting the disk space on the target server.

En PHP versiones 7.2.x por debajo de 7.2.31, versiones 7.3.x por debajo de 7.3.18 y 7.4.x por debajo de 7.4.6, cuando son permitidas las descargas de archivos HTTP, el suministro de nombres de archivo o de campo demasiado largos podría conllevar al motor PHP a intentar asignar un almacenamiento de memoria sobredimensionado, alcanzar el límite de memoria y detener el procesamiento de la petición, sin limpiar los archivos temporales creados por la petición de descarga. Esto podría conllevar a la acumulación de archivos temporales sin limpiar que agotan el espacio de disco en el servidor de destino.

A flaw was found in PHP under a non-default configuration, where it was vulnerable to integer wraparounds during the reception of a multipart POST request. This flaw allows a remote attacker to repeatedly crash PHP and fill the filesystem with temporary PHP files, resulting in a denial of service.

*Credits: jr at coredu dot mp
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
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
  • 2019-04-09 CVE Reserved
  • 2020-05-20 CVE Published
  • 2024-09-04 EPSS Updated
  • 2024-09-16 CVE Updated
  • 2024-09-16 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-190: Integer Overflow or Wraparound
  • CWE-400: Uncontrolled Resource Consumption
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"
 >= 7.2.0 < 7.2.31
Search vendor "Php" for product "Php" and version " >= 7.2.0 < 7.2.31"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.3.0 < 7.3.18
Search vendor "Php" for product "Php" and version " >= 7.3.0 < 7.3.18"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.4.0 < 7.4.6
Search vendor "Php" for product "Php" and version " >= 7.4.0 < 7.4.6"
-
Affected