Various packet overreads in mysqlnd_writeprotocol.c
At a glance
Severity
LOW 3.4
EPSS
EPSS 0.28 % · percentile 21 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
php
NVD status
Analyzed
Description
The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined behaviour and can crash the process.
