// For flags

CVE-2022-31626

mysqlnd/pdo password buffer overflow

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when pdo_mysql extension with mysqlnd driver, if the third party is allowed to supply host to connect to and the password for the connection, password of excessive length can trigger a buffer overflow in PHP, which can lead to a remote code execution vulnerability.

En PHP versiones 7.4.x anteriores a 7.4.30, 8.0.x anteriores a 8.0.20 y 8.1.x anteriores a 8.1.7, cuando la extensión pdo_mysql con el controlador mysqlnd, si es permitido que el tercero suministre el host al que conectarse y la contraseña para la conexión, la contraseña de longitud excesiva puede desencadenar un desbordamiento de búfer en PHP, lo que puede conllevar a una vulnerabilidad de ejecución de código remota

A buffer overflow vulnerability was found in PHP when processing passwords in mysqlnd/pdo in mysqlnd_wireprotocol.c. When using the pdo_mysql extension with mysqlnd driver, if the third party is allowed to supply a MySQL database server password in the mysqlnd driver to the host for the connection, a password of excessive length can trigger a buffer overflow in PHP. This flaw allows a remote attacker to pass a password (with an excessive length) via PDO to the MySQL server, triggering arbitrary code execution on the target system.

*Credits: c dot fol at ambionics dot io
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-05-25 CVE Reserved
  • 2022-06-16 CVE Published
  • 2024-05-19 First Exploit
  • 2024-09-17 CVE Updated
  • 2024-11-01 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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
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>= 7.4.0 < 7.4.30
Search vendor "Php" for product "Php" and version " >= 7.4.0 < 7.4.30"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 8.0.0 < 8.0.20
Search vendor "Php" for product "Php" and version " >= 8.0.0 < 8.0.20"
-
Affected
Php
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Php
Search vendor "Php" for product "Php"
>= 8.1.0 < 8.1.7
Search vendor "Php" for product "Php" and version " >= 8.1.0 < 8.1.7"
-
Affected
Debian
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Debian Linux
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10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Debian
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Debian Linux
Search vendor "Debian" for product "Debian Linux"
11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected