CVE-2022-31626CWE-120

mysqlnd/pdo password buffer overflow

High · published June 16, 2022

Patch now

High probability of exploitation

CVSS calls it high at 7.5. It sits in the 99.1th percentile for exploit probability.

CVSS v3.1

7.5

EPSS

58%

Percentile

99.1

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v3.1: 7.5 · HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0: Not supplied
EPSS: 0.58123 · 99.1th percentile
Weakness: CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published: 2022-06-16T05:45Z

EPSS history

Timeline

16 JUN 05:45Z
mysqlnd/pdo password buffer overflow
cvelistv5