diff --git a/src/ascmagic.c b/src/ascmagic.c
index 9236fb4..5a531ae 100644
--- a/ext/fileinfo/libmagic/ascmagic.c
+++ b/ext/fileinfo/libmagic/ascmagic.c
@@ -151,7 +151,7 @@ file_ascmagic_with_encoding(struct magic_set *ms, const unsigned char *buf,
 	if ((utf8_end = encode_utf8(utf8_buf, mlen, ubuf, ulen)) == NULL)
 		goto done;
 	if ((rv = file_softmagic(ms, utf8_buf, (size_t)(utf8_end - utf8_buf),
-	    TEXTTEST)) != 0)
+	    0, TEXTTEST)) != 0)
 		goto done;
 	else
 		rv = -1;
diff --git a/src/file.h b/src/file.h
index c07f2d4..2a6cf02 100644
--- a/ext/fileinfo/libmagic/file.h
+++ b/ext/fileinfo/libmagic/file.h
@@ -373,8 +373,8 @@ protected int file_ascmagic_with_encoding(struct magic_set *,
 protected int file_encoding(struct magic_set *, const unsigned char *, size_t,
     unichar **, size_t *, const char **, const char **, const char **);
 protected int file_is_tar(struct magic_set *, const unsigned char *, size_t);
-protected int file_softmagic(struct magic_set *, const unsigned char *, size_t,
-    int);
+protected int file_softmagic(struct magic_set *, const unsigned char *,  size_t,
+    size_t, int);
 protected struct mlist *file_apprentice(struct magic_set *, const char *, int);
 protected uint64_t file_signextend(struct magic_set *, struct magic *,
     uint64_t);
diff --git a/src/funcs.c b/src/funcs.c
index 2397417..11d257f 100644
--- a/ext/fileinfo/libmagic/funcs.c
+++ b/ext/fileinfo/libmagic/funcs.c
@@ -227,7 +227,7 @@ file_buffer(struct magic_set *ms, int fd, const char *inname, const void *buf,
 
 	/* try soft magic tests */
 	if ((ms->flags & MAGIC_NO_CHECK_SOFT) == 0)
-		if ((m = file_softmagic(ms, ubuf, nb, BINTEST)) != 0) {
+		if ((m = file_softmagic(ms, ubuf, nb, 0, BINTEST)) != 0) {
 			if ((ms->flags & MAGIC_DEBUG) != 0)
 				(void)fprintf(stderr, "softmagic %d\n", m);
 #ifdef BUILTIN_ELF
diff --git a/src/softmagic.c b/src/softmagic.c
index 58a1cf7..107876c 100644
--- a/ext/fileinfo/libmagic/softmagic.c
+++ b/ext/fileinfo/libmagic/softmagic.c
@@ -70,9 +70,9 @@ file_pstring_length_size(const struct magic *m)
 
 
 private int match(struct magic_set *, struct magic *, uint32_t,
-    const unsigned char *, size_t, int);
+    const unsigned char *, size_t, int, int);
 private int mget(struct magic_set *, const unsigned char *,
-    struct magic *, size_t, unsigned int);
+    struct magic *, size_t, unsigned int, int);
 private int magiccheck(struct magic_set *, struct magic *);
 private int32_t mprint(struct magic_set *, struct magic *);
 private int32_t moffset(struct magic_set *, struct magic *);
@@ -94,12 +94,12 @@ private void cvt_64(union VALUETYPE *, const struct magic *);
  */
 /*ARGSUSED1*/		/* nbytes passed for regularity, maybe need later */
 protected int
-file_softmagic(struct magic_set *ms, const unsigned char *buf, size_t nbytes, int mode)
+file_softmagic(struct magic_set *ms, const unsigned char *buf, size_t nbytes, size_t level, int mode)
 {
 	struct mlist *ml;
 	int rv;
 	for (ml = ms->mlist->next; ml != ms->mlist; ml = ml->next)
-		if ((rv = match(ms, ml->magic, ml->nmagic, buf, nbytes, mode)) != 0)
+		if ((rv = match(ms, ml->magic, ml->nmagic, buf, nbytes, mode, level)) != 0)
 			return rv;
 
 	return 0;
@@ -134,7 +134,7 @@ file_softmagic(struct magic_set *ms, const unsigned char *buf, size_t nbytes, in
  */
 private int
 match(struct magic_set *ms, struct magic *magic, uint32_t nmagic,
-    const unsigned char *s, size_t nbytes, int mode)
+    const unsigned char *s, size_t nbytes, int mode, int recursion_level)
 {
 	uint32_t magindex = 0;
 	unsigned int cont_level = 0;
@@ -163,7 +163,7 @@ match(struct magic_set *ms, struct magic *magic, uint32_t nmagic,
 		ms->line = m->lineno;
 
 		/* if main entry matches, print it... */
-		switch (mget(ms, s, m, nbytes, cont_level)) {
+		switch (mget(ms, s, m, nbytes, cont_level, recursion_level + 1)) {
 		case -1:
 			return -1;
 		case 0:
@@ -246,7 +246,7 @@ match(struct magic_set *ms, struct magic *magic, uint32_t nmagic,
 					continue;
 			}
 #endif
-			switch (mget(ms, s, m, nbytes, cont_level)) {
+			switch (mget(ms, s, m, nbytes, cont_level, recursion_level + 1)) {
 			case -1:
 				return -1;
 			case 0:
@@ -1062,13 +1062,18 @@ mcopy(struct magic_set *ms, union VALUETYPE *p, int type, int indir,
 
 private int
 mget(struct magic_set *ms, const unsigned char *s,
-    struct magic *m, size_t nbytes, unsigned int cont_level)
+    struct magic *m, size_t nbytes, unsigned int cont_level, int recursion_level)
 {
 	uint32_t offset = ms->offset;
 	uint32_t count = m->str_range;
 	uint32_t lhs;
 	union VALUETYPE *p = &ms->ms_value;
 
+	if (recursion_level >= 20) {
+		file_error(ms, 0, "recursion nesting exceeded");
+		return -1;
+	}
+
 	if (mcopy(ms, p, m->type, m->flag & INDIR, s, offset, nbytes, count) == -1)
 		return -1;
 
@@ -1486,17 +1491,19 @@ mget(struct magic_set *ms, const unsigned char *s,
 		break;
 
 	case FILE_REGEX:
-		if (nbytes < offset)
+		if (nbytes < offset)
 			return 0;
 		break;
 
 	case FILE_INDIRECT:
+		if (offset == 0)
+			return 0;
 	  	if ((ms->flags & (MAGIC_MIME|MAGIC_APPLE)) == 0 &&
 		    file_printf(ms, m->desc) == -1)
 			return -1;
-		if (nbytes < offset)
+		if (nbytes < offset)
 			return 0;
-		return file_softmagic(ms, s + offset, nbytes - offset,
+		return file_softmagic(ms, s + offset, nbytes - offset, recursion_level,
 		    BINTEST);
 
 	case FILE_DEFAULT:	/* nothing to check */
diff --git a/ext/fileinfo/tests/cve-2014-1943.phpt b/ext/fileinfo/tests/cve-2014-1943.phpt
new file mode 100644
index 0000000..b2e9c17
--- /dev/null
+++ b/ext/fileinfo/tests/cve-2014-1943.phpt
@@ -0,0 +1,39 @@
+--TEST--
+Bug #66731: file: infinite recursion
+--SKIPIF--
+<?php
+if (!class_exists('finfo'))
+	die('skip no fileinfo extension');
+--FILE--
+<?php
+$fd = __DIR__.'/cve-2014-1943.data';
+$fm = __DIR__.'/cve-2014-1943.magic';
+
+$a = "\105\122\000\000\000\000\000";
+$b = str_repeat("\001", 250000);
+$m =  "0           byte        x\n".
+      ">(1.b)      indirect    x\n";
+
+file_put_contents($fd, $a);
+$fi = finfo_open(FILEINFO_NONE);
+var_dump(finfo_file($fi, $fd));
+finfo_close($fi);
+
+file_put_contents($fd, $b);
+file_put_contents($fm, $m);
+$fi = finfo_open(FILEINFO_NONE, $fm);
+var_dump(finfo_file($fi, $fd));
+finfo_close($fi);
+?>
+Done
+--CLEAN--
+<?php
+@unlink(__DIR__.'/cve-2014-1943.data');
+@unlink(__DIR__.'/cve-2014-1943.magic');
+?>
+--EXPECTF--
+string(%d) "%s"
+
+Warning: finfo_file(): Failed identify data 0:(null) in %s on line %d
+bool(false)
+Done