diff --git a/ffmpeg-4.spec b/ffmpeg-4.spec
index 70fce95..786bb4e 100644
--- a/ffmpeg-4.spec
+++ b/ffmpeg-4.spec
@@ -12,7 +12,7 @@
 # license that conforms to the Open Source Definition (Version 1.9)
 # published by the Open Source Initiative.
 
-# Please submit bugfixes or comments via http://bugs.opensuse.org/
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
 #
 
 
diff --git a/ffmpeg-CVE-2018-13305.patch b/ffmpeg-CVE-2018-13305.patch
index 9e47b0f..5401ead 100644
--- a/ffmpeg-CVE-2018-13305.patch
+++ b/ffmpeg-CVE-2018-13305.patch
@@ -1,13 +1,33 @@
-diff --git a/libavcodec/vc1_block.c b/libavcodec/vc1_block.c
-index b06ee9f..5b38183 100644
---- a/libavcodec/vc1_block.c
-+++ b/libavcodec/vc1_block.c
-@@ -188,7 +188,7 @@ static void vc1_put_signed_blocks_clamped(VC1Context *v)
+From d08d4a8c7387e758d439b0592782e4cfa2b4d6a4 Mon Sep 17 00:00:00 2001
+From: Michael Niedermayer <michael@niedermayer.cc>
+Date: Thu, 28 Jun 2018 23:46:32 +0200
+Subject: [PATCH] avcodec/vc1_block: Fix mqaunt check for negative values
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Fixes: out of array access
+Fixes: ffmpeg_bof_4.avi
+Fixes: ffmpeg_bof_5.avi
+Fixes: ffmpeg_bof_6.avi
+
+Found-by: Thuan Pham, Marcel Böhme, Andrew Santosa and Alexandru Razvan Caciulescu with AFLSmart
+Reviewed-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
+Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
+---
+ libavcodec/vc1_block.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: ffmpeg-4.0.2/libavcodec/vc1_block.c
+===================================================================
+--- ffmpeg-4.0.2.orig/libavcodec/vc1_block.c
++++ ffmpeg-4.0.2/libavcodec/vc1_block.c
+@@ -188,7 +188,7 @@ static void vc1_put_signed_blocks_clampe
              mquant = v->altpq;                                 \
          if ((edges&8) && s->mb_y == (s->mb_height - 1))        \
              mquant = v->altpq;                                 \
 -        if (!mquant || mquant > 31) {                          \
-+        if (!mquant || mquant > 31 || mquant < -31) {                          \
++        if (!mquant || mquant > 31 || mquant < -31) { \
              av_log(v->s.avctx, AV_LOG_ERROR,                   \
                     "Overriding invalid mquant %d\n", mquant);  \
              mquant = 1;                                        \