CVE-2022-31631
php: PDO:: quote() may return unquoted string due to an integer overflow
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · January 5, 2023
Updated · November 22, 2025
Description
A flaw was found in PHP. This issue occurs due to an uncaught integer overflow in PDO::quote() of PDO_SQLite returning an improperly quoted string. With the implementation of sqlite3_snprintf(), it is possible to force the function to return a single apostrophe if the function is called on user-supplied input without any length restrictions in place.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-190 · Integer Overflow or Wraparound