openssl: avoid NULL pointer dereference in three places

There are three potential NULL pointer dereference in
EVP_DigestInit_ex(), dh_pub_encode() and dsa_pub_encode()
functions.
Fix them by adding proper null pointer check.

[YOCTO #4600]
[ CQID: WIND00373257 ]

(From OE-Core rev: 4779d3c89cf0129763a4f5b7306c1247a0d6d021)

Signed-off-by: Xufeng Zhang <xufeng.zhang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/openssl/openssl_1.0.1e.bb b/meta/recipes-connectivity/openssl/openssl_1.0.1e.bb
index bd6fd046a3..ac27dba494 100644
--- a/meta/recipes-connectivity/openssl/openssl_1.0.1e.bb
+++ b/meta/recipes-connectivity/openssl/openssl_1.0.1e.bb
@@ -31,6 +31,8 @@ SRC_URI += "file://configure-targets.patch \
             file://openssl_fix_for_x32.patch \
             file://openssl-fix-doc.patch \
             file://fix-cipher-des-ede3-cfb1.patch \
+            file://openssl-avoid-NULL-pointer-dereference-in-EVP_DigestInit_ex.patch \
+            file://openssl-avoid-NULL-pointer-dereference-in-dh_pub_encode.patch \
             file://find.pl \
            "