|
 |
061de8 |
From 7cb160efe19d3dfb8b92629805733ea186b55050 Mon Sep 17 00:00:00 2001
|
|
|
061de8 |
From: "Christoph M. Becker" <cmbecker69@gmx.de>
|
|
|
061de8 |
Date: Mon, 31 Oct 2022 17:20:23 +0100
|
|
|
061de8 |
Subject: [PATCH] Fix #81740: PDO::quote() may return unquoted string
|
|
|
061de8 |
|
|
|
061de8 |
`sqlite3_snprintf()` expects its first parameter to be `int`; we need
|
|
|
061de8 |
to avoid overflow.
|
|
|
061de8 |
|
|
|
061de8 |
(cherry picked from commit 921b6813da3237a83e908998483f46ae3d8bacba)
|
|
|
061de8 |
---
|
|
|
061de8 |
ext/pdo_sqlite/sqlite_driver.c | 3 +++
|
|
|
061de8 |
ext/pdo_sqlite/tests/bug81740.phpt | 17 +++++++++++++++++
|
|
|
061de8 |
2 files changed, 20 insertions(+)
|
|
|
061de8 |
create mode 100644 ext/pdo_sqlite/tests/bug81740.phpt
|
|
|
061de8 |
|
|
|
061de8 |
diff --git a/ext/pdo_sqlite/sqlite_driver.c b/ext/pdo_sqlite/sqlite_driver.c
|
|
|
061de8 |
index 0595bd09fe..54f9d05e1e 100644
|
|
|
061de8 |
--- a/ext/pdo_sqlite/sqlite_driver.c
|
|
|
061de8 |
+++ b/ext/pdo_sqlite/sqlite_driver.c
|
|
|
061de8 |
@@ -233,6 +233,9 @@ static char *pdo_sqlite_last_insert_id(pdo_dbh_t *dbh, const char *name, size_t
|
|
|
061de8 |
/* NB: doesn't handle binary strings... use prepared stmts for that */
|
|
|
061de8 |
static int sqlite_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, size_t unquotedlen, char **quoted, size_t *quotedlen, enum pdo_param_type paramtype )
|
|
|
061de8 |
{
|
|
|
061de8 |
+ if (unquotedlen > (INT_MAX - 3) / 2) {
|
|
|
061de8 |
+ return 0;
|
|
|
061de8 |
+ }
|
|
|
061de8 |
*quoted = safe_emalloc(2, unquotedlen, 3);
|
|
|
061de8 |
sqlite3_snprintf(2*unquotedlen + 3, *quoted, "'%q'", unquoted);
|
|
|
061de8 |
*quotedlen = strlen(*quoted);
|
|
|
061de8 |
diff --git a/ext/pdo_sqlite/tests/bug81740.phpt b/ext/pdo_sqlite/tests/bug81740.phpt
|
|
|
061de8 |
new file mode 100644
|
|
|
061de8 |
index 0000000000..99fb07c304
|
|
|
061de8 |
--- /dev/null
|
|
|
061de8 |
+++ b/ext/pdo_sqlite/tests/bug81740.phpt
|
|
|
061de8 |
@@ -0,0 +1,17 @@
|
|
|
061de8 |
+--TEST--
|
|
|
061de8 |
+Bug #81740 (PDO::quote() may return unquoted string)
|
|
|
061de8 |
+--SKIPIF--
|
|
|
061de8 |
+
|
|
|
061de8 |
+if (!extension_loaded('pdo_sqlite')) print 'skip not loaded';
|
|
|
061de8 |
+if (getenv("SKIP_SLOW_TESTS")) die("skip slow test");
|
|
|
061de8 |
+?>
|
|
|
061de8 |
+--INI--
|
|
|
061de8 |
+memory_limit=-1
|
|
|
061de8 |
+--FILE--
|
|
|
061de8 |
+
|
|
|
061de8 |
+$pdo = new PDO("sqlite::memory:");
|
|
|
061de8 |
+$string = str_repeat("a", 0x80000000);
|
|
|
061de8 |
+var_dump($pdo->quote($string));
|
|
|
061de8 |
+?>
|
|
|
061de8 |
+--EXPECT--
|
|
|
061de8 |
+bool(false)
|