From: Bernd Edlinger <bernd.edlinger@hotmail.de>
Date: Fri, 30 Mar 2018 17:13:06 +0000 (+0200)
Subject: Clear buffer in PEM_write_bio
X-Git-Tag: OpenSSL_1_1_1-pre6~75
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=c9c56ee50139a143797e12563a1668df02f99c5a;p=oweals%2Fopenssl.git

Clear buffer in PEM_write_bio

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5814)
---

diff --git a/crypto/pem/pem_lib.c b/crypto/pem/pem_lib.c
index 830099295c..6e66e9d3e9 100644
--- a/crypto/pem/pem_lib.c
+++ b/crypto/pem/pem_lib.c
@@ -661,7 +661,7 @@ int PEM_write_bio(BIO *bp, const char *name, const char *header,
     if (retval == 0)
         PEMerr(PEM_F_PEM_WRITE_BIO, reason);
     EVP_ENCODE_CTX_free(ctx);
-    OPENSSL_free(buf);
+    OPENSSL_clear_free(buf, PEM_BUFSIZE * 8);
     return retval;
 }