From feeee4b5832b17641e505b7083e0d299fdae318e Mon Sep 17 00:00:00 2001
From: Christian Persch <chpe@gnome.org>
Date: Sat, 19 May 2012 17:36:09 +0000
Subject: emulation: Limit integer arguments to 65535

To guard against malicious sequences containing excessively big numbers,
limit all parsed numbers to 16 bit range. Doing this here in the parsing
routine is a catch-all guard; this doesn't preclude enforcing
more stringent limits in the handlers themselves.

https://bugzilla.gnome.org/show_bug.cgi?id=676090
---
diff --git a/src/table.c b/src/table.c
index 140e8c8..85cf631 100644
--- a/src/table.c
+++ b/src/table.c
@@ -550,7 +550,7 @@ _vte_table_extract_numbers(GValueArray **array,
 		if (G_UNLIKELY (*array == NULL)) {
 			*array = g_value_array_new(1);
 		}
-		g_value_set_long(&value, total);
+		g_value_set_long(&value, CLAMP (total, 0, G_MAXUSHORT));
 		g_value_array_append(*array, &value);
 	} while (i++ < arginfo->length);
 	g_value_unset(&value);
diff --git a/src/vteseq.c b/src/vteseq.c
index 457c06a..46def5b 100644
--- a/src/vteseq.c
+++ b/src/vteseq.c
@@ -544,7 +544,7 @@
 		value = g_value_array_get_nth(params, 0);
 		if (G_VALUE_HOLDS_LONG(value)) {
 			val = g_value_get_long(value);
-			val = MAX(val, 1);	/* FIXME: vttest. */
+			val = CLAMP(val, 1, G_MAXUSHORT);  /* FIXME: vttest. */
 		}
 	}
 	for (i = 0; i < val; i++)
--
cgit v0.9.0.2