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Bug #80147 BINARY strings may not be properly zero-terminated
Submitted: 2020-09-25 09:15 UTC Modified: 2020-09-25 09:15 UTC
From: cmb@php.net Assigned: cmb (profile)
Status: Closed Package: ODBC related
PHP Version: 7.3.22 OS: *
Private report: No CVE-ID: None
 [2020-09-25 09:15 UTC] cmb@php.net
Description:
------------
When fetching BINARY, VARBINARY or LONGVARBINARY data from the
data source with the (default) binary mode ODBC_BINMODE_RETURN,
the returned strings may not be properly zero-terminated, what may
cause issues later.


Test script:
---------------
<?php
$conn = odbc_connect($dsn, $user, $pass);

odbc_exec($conn, "CREATE TABLE test (id INT, whatever VARBINARY(50))");
odbc_exec($conn, "INSERT INTO test VALUES (1, CONVERT(VARBINARY(50), 'whatever'))");

$res = odbc_exec($conn, "SELECT * FROM test");
odbc_binmode($res, ODBC_BINMODE_RETURN);
odbc_fetch_row($res);
var_dump(odbc_result($res, 'whatever'));
?>


Expected result:
----------------
string(8) "whatever"


Actual result:
--------------
string(8) "whatever"

Warning: String is not zero-terminated (whatever) in %s on line %d


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History

AllCommentsChangesGit/SVN commitsRelated reports
 [2020-09-25 09:15 UTC] cmb@php.net
-Assigned To: +Assigned To: cmb
 [2020-09-25 09:33 UTC] cmb@php.net
The following pull request has been associated:

Patch Name: Fix #80147: BINARY strings may not be properly zero-terminated
On GitHub:  https://github.com/php/php-src/pull/6213
Patch:      https://github.com/php/php-src/pull/6213.patch
 [2020-09-25 11:54 UTC] cmb@php.net
Automatic comment on behalf of cmbecker69@gmx.de
Revision: http://git.php.net/?p=php-src.git;a=commit;h=a49555a9e1547a513e2f22d0a2a3ef92cddbec3d
Log: Fix #80147: BINARY strings may not be properly zero-terminated
 [2020-09-25 11:54 UTC] cmb@php.net
-Status: Assigned +Status: Closed
 
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