| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | pgsql-odbc(at)lists(dot)postgresql(dot)org |
| Cc: | Werewolf <werewolfff(at)yandex(dot)ru> |
| Subject: | Fwd: ODBC: SQLGetDescField returns incorrect length for SQL_DESC_COUNT field of APD |
| Date: | 2019-06-26 16:35:37 |
| Message-ID: | 9379.1561566937@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-odbc |
Forwarding to correct list ...
------- Forwarded Message
Date: Wed, 26 Jun 2019 19:00:58 +0300
From: Werewolf <werewolfff(at)yandex(dot)ru>
To: pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: ODBC: SQLGetDescField returns incorrect length for SQL_DESC_COUNT
field of APD
Field SQL_DESC_COUNT should fit into a variable of type SQLSMALLINT. But
when retrieving this field of APD SQLGetDescField returns SQLINTEGER
value. So memory corruption is possible in application using psqlodbc
driver.
Also the function returns an undefined error code -8.
The mistake is located here
https://git.postgresql.org/gitweb/?p=psqlodbc.git;a=blob;f=pgapi30.c;h=ba0dd6d731bbccd81392def43ae9b10e9c013aef;hb=HEAD#l1240
Just replace 'ret = SQL_IS_SMALLINT;' with 'rettype = SQL_IS_SMALLINT;'.
------- End of Forwarded Message
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Inoue, Hiroshi | 2019-06-26 20:18:34 | Re: psqlodbc: No memory available to store statement |
| Previous Message | Donovan Hsieh | 2019-06-26 15:30:26 | psqlODBC - PostgreSQL ODBC driver error |