From: Lutz Jänicke <jaenicke@openssl.org>
Date: Sun, 16 Nov 2003 16:31:22 +0000 (+0000)
Subject: Catch error condition to prevent NULL pointer dereference.
X-Git-Tag: OpenSSL_0_9_7d~82
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6b051c4ebced22009916a826ac9d8f32842d7b3c;p=openssl

Catch error condition to prevent NULL pointer dereference.
Submitted by: Goetz Babin-Ebell <babin-ebell@trustcenter.de>

PR: #766
---

diff --git a/apps/apps.c b/apps/apps.c
index 007e3e06c3..1ab07af50b 100644
--- a/apps/apps.c
+++ b/apps/apps.c
@@ -501,7 +501,7 @@ static int ui_read(UI *ui, UI_STRING *uis)
 			{
 			const char *password =
 				((PW_CB_DATA *)UI_get0_user_data(ui))->password;
-			if (password[0] != '\0')
+			if (password && password[0] != '\0')
 				{
 				UI_set_result(ui, uis, password);
 				return 1;
@@ -525,7 +525,7 @@ static int ui_write(UI *ui, UI_STRING *uis)
 			{
 			const char *password =
 				((PW_CB_DATA *)UI_get0_user_data(ui))->password;
-			if (password[0] != '\0')
+			if (password && password[0] != '\0')
 				return 1;
 			}
 		default: