diff --git a/libavformat/cafdec.c b/libavformat/cafdec.c
index 656b473140..1557391ef3 100644
--- a/libavformat/cafdec.c
+++ b/libavformat/cafdec.c
@@ -326,6 +326,10 @@ static void read_info_chunk(AVFormatContext *s, int64_t size)
     AVIOContext *pb = s->pb;
     unsigned int i;
     unsigned int nb_entries = avio_rb32(pb);
+
+    if (3LL * nb_entries > size)
+        return;
+
     for (i = 0; i < nb_entries && !avio_feof(pb); i++) {
         char key[32];
         char value[1024];