Skip to content

[PDO] Bound-check column index in getColumnMeta() #23654

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
iliaal wants to merge 1 commit into
base: PHP-8.4
Choose a base branch
from
+59 −0
Open

[PDO] Bound-check column index in getColumnMeta() #23654

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions NEWS
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,11 @@ PHP NEWS
registrations are freed while still reachable from the cycle collector.
(Ilia Alshanetsky)

- PDO:
. Fixed PDOStatement::getColumnMeta() reading out of bounds for an invalid
column index. (Ilia Alshanetsky)



24 Sep 2026, PHP 8.4.26

Expand Down
5 changes: 5 additions & 0 deletions ext/pdo/pdo_stmt.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1700,6 +1700,11 @@ PHP_METHOD(PDOStatement, getColumnMeta)
RETURN_FALSE;
}

if (stmt->columns == NULL || colno >= stmt->column_count) {
zend_value_error("Invalid column index");
RETURN_THROWS();
}

/* add stock items */
col = &stmt->columns[colno];
add_assoc_str(return_value, "name", zend_string_copy(col->name));
Expand Down
49 changes: 49 additions & 0 deletions ext/pdo_odbc/tests/getcolumnmeta_bounds.phpt
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,49 @@
--TEST--
PDO_odbc getColumnMeta() bounds checking on unexecuted statements and invalid indexes
--EXTENSIONS--
pdo_odbc
--SKIPIF--
<?php
try {
new Pdo\Odbc('odbc:Driver={SQLite3};Database=:memory:');
} catch (Throwable $e) {
die('skip SQLite3 ODBC driver not available');
}
?>
--FILE--
<?php
$pdo = new Pdo\Odbc('odbc:Driver={SQLite3};Database=:memory:',
null, null, [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]);
$stmt = $pdo->prepare('SELECT 1 AS one');

try {
var_dump($stmt->getColumnMeta(0));
} catch (ValueError $e) {
echo get_class($e), ': ', $e->getMessage(), "\n";
}

$stmt->execute();
var_dump($stmt->getColumnMeta(0));

try {
var_dump($stmt->getColumnMeta(5));
} catch (ValueError $e) {
echo get_class($e), ': ', $e->getMessage(), "\n";
}
Comment on lines +21 to +32

@NickSdot NickSdot Sep 11, 2026

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
} catch (ValueError $e) {
echo get_class($e), ': ', $e->getMessage(), "\n";
}
$stmt->execute();
var_dump($stmt->getColumnMeta(0));
try {
var_dump($stmt->getColumnMeta(5));
} catch (ValueError $e) {
echo get_class($e), ': ', $e->getMessage(), "\n";
}
} catch (Throwable $e) {
echo $e::class, ': ', $e->getMessage(), "\n";
}
$stmt->execute();
var_dump($stmt->getColumnMeta(0));
try {
var_dump($stmt->getColumnMeta(5));
} catch (Throwable $e) {
echo $e::class, ': ', $e->getMessage(), "\n";
}


echo "done\n";
?>
--EXPECTF--
ValueError: Invalid column index
array(4) {
["pdo_type"]=>
int(2)
["name"]=>
string(3) "one"
["len"]=>
int(%d)
["precision"]=>
int(%d)
}
ValueError: Invalid column index
done
Loading