// For flags

CVE-2021-21704

Multiple vulnerabilities in Firebird client extension

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

4
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using Firebird PDO driver extension, a malicious database server could cause crashes in various database functions, such as getAttribute(), execute(), fetch() and others by returning invalid response data that is not parsed correctly by the driver. This can result in crashes, denial of service or potentially memory corruption.

En PHP versiones 7.3.x por debajo de 7.3.29, 7.4.x y por debajo de 7.4.21 y 8.0.x por debajo de 8.0.8, cuando es usada la extensión del controlador PDO de Firebird, un servidor de base de datos malicioso podría causar bloqueos en varias funciones de la base de datos, como getAttribute(), execute(), fetch() y otras, al devolver datos de respuesta no válidos que no son analizados correctamente por el controlador. Esto puede resultar en fallos, denegación de servicio o potencialmente una corrupción de memoria

*Credits: reported by trichimtrich at gmail dot com
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-04 CVE Reserved
  • 2021-07-07 CVE Published
  • 2024-03-06 EPSS Updated
  • 2024-09-17 CVE Updated
  • 2024-09-17 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-125: Out-of-bounds Read
  • CWE-190: Integer Overflow or Wraparound
  • CWE-787: Out-of-bounds Write
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"
 >= 7.3.0 < 7.3.29
Search vendor "Php" for product "Php" and version " >= 7.3.0 < 7.3.29"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.4.0 < 7.4.21
Search vendor "Php" for product "Php" and version " >= 7.4.0 < 7.4.21"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 8.0.0 < 8.0.8
Search vendor "Php" for product "Php" and version " >= 8.0.0 < 8.0.8"
-
Affected
Netapp
Search vendor "Netapp"
 Clustered Data Ontap
Search vendor "Netapp" for product "Clustered Data Ontap"
--
Affected