From: Bertrand Marc <bmarc@debian.org>
Subject: CVE-2017-15266

Bug-Upstream: http://lists.gnu.org/archive/html/bug-libextractor/2017-10/msg00002.html
Bug-Debian: https://bugs.debian.org/878314
Origin: https://gnunet.org/git/libextractor.git/commit/?id=b577d5452c5c4ee9d552da62a24b95f461551fe2
--- a/src/plugins/wav_extractor.c
+++ b/src/plugins/wav_extractor.c
@@ -109,6 +109,8 @@
     return;                /* invalid sample size found in wav file */
   if (0 == channels)
     return;                /* invalid channels value -- avoid division by 0! */
+  if (0 == sample_rate)
+    return;                /* invalid sample_rate */
   samples = data_len / (channels * (sample_size >> 3));
 
   snprintf (scratch,