From: tb <tb@openbsd.org>
Date: Fri, 24 Aug 2018 19:48:39 +0000 (+0000)
Subject: Check return value of EVP_EncodeUpdate() in PEM_write_bio().
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=4256894af567b9e26b42a23caa47bf237dc4c629;p=openbsd

Check return value of EVP_EncodeUpdate() in PEM_write_bio().

ok jsing
---

diff --git a/lib/libcrypto/pem/pem_lib.c b/lib/libcrypto/pem/pem_lib.c
index bffd1fa9540..6661a222f00 100644
--- a/lib/libcrypto/pem/pem_lib.c
+++ b/lib/libcrypto/pem/pem_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pem_lib.c,v 1.47 2018/05/13 10:47:54 tb Exp $ */
+/* $OpenBSD: pem_lib.c,v 1.48 2018/08/24 19:48:39 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -613,7 +613,8 @@ PEM_write_bio(BIO *bp, const char *name, const char *header,
 	i = j = 0;
 	while (len > 0) {
 		n = (int)((len > (PEM_BUFSIZE * 5)) ? (PEM_BUFSIZE * 5) : len);
-		EVP_EncodeUpdate(&ctx, buf, &outl, &(data[j]), n);
+		if (!EVP_EncodeUpdate(&ctx, buf, &outl, &(data[j]), n))
+			goto err;
 		if ((outl) && (BIO_write(bp, (char *)buf, outl) != outl))
 			goto err;
 		i += outl;