gnu: libsndfile: Add fixes for CVE-2014-9496 and CVE-2015-7805.

* gnu/packages/patches/libsndfile-CVE-2014-9496.patch,
  gnu/packages/patches/libsndfile-CVE-2015-7805.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/pulseaudio.scm (libsndfile)[source]: Add patches.

1 files changed, 55 insertions, 0 deletions

diff --git a/gnu/packages/patches/libsndfile-CVE-2014-9496.patch b/gnu/packages/patches/libsndfile-CVE-2014-9496.patch
new file mode 100644
index 0000000000..87d42955fb
--- /dev/null
+++ b/gnu/packages/patches/libsndfile-CVE-2014-9496.patch
@@ -0,0 +1,55 @@
+Copied from Fedora.
+
+http://pkgs.fedoraproject.org/cgit/libsndfile.git/plain/libsndfile-1.0.25-cve2014_9496.patch
+
+diff -up libsndfile-1.0.25/src/sd2.c.cve2014_9496 libsndfile-1.0.25/src/sd2.c
+--- libsndfile-1.0.25/src/sd2.c.cve2014_9496	2011-01-19 11:10:36.000000000 +0100
++++ libsndfile-1.0.25/src/sd2.c	2015-01-13 17:00:35.920285526 +0100
+@@ -395,6 +395,21 @@ read_marker (const unsigned char * data,
+ 		return 0x666 ;
+ } /* read_marker */
+ 
++static inline int
++read_rsrc_marker (const SD2_RSRC *prsrc, int offset)
++{	const unsigned char * data = prsrc->rsrc_data ;
++
++	if (offset < 0 || offset + 3 >= prsrc->rsrc_len)
++		return 0 ;
++
++	if (CPU_IS_BIG_ENDIAN)
++		return (((uint32_t) data [offset]) << 24) + (data [offset + 1] << 16) + (data [offset + 2] << 8) + data [offset + 3] ;
++	if (CPU_IS_LITTLE_ENDIAN)
++		return data [offset] + (data [offset + 1] << 8) + (data [offset + 2] << 16) + (((uint32_t) data [offset + 3]) << 24) ;
++
++	return 0 ;
++} /* read_rsrc_marker */
++
+ static void
+ read_str (const unsigned char * data, int offset, char * buffer, int buffer_len)
+ {	int k ;
+@@ -496,6 +511,11 @@ sd2_parse_rsrc_fork (SF_PRIVATE *psf)
+ 
+ 	rsrc.type_offset = rsrc.map_offset + 30 ;
+ 
++	if (rsrc.map_offset + 28 > rsrc.rsrc_len)
++	{       psf_log_printf (psf, "Bad map offset.\n") ;
++		goto parse_rsrc_fork_cleanup ;
++		} ;
++
+ 	rsrc.type_count = read_short (rsrc.rsrc_data, rsrc.map_offset + 28) + 1 ;
+ 	if (rsrc.type_count < 1)
+ 	{	psf_log_printf (psf, "Bad type count.\n") ;
+@@ -512,7 +532,12 @@ sd2_parse_rsrc_fork (SF_PRIVATE *psf)
+ 
+ 	rsrc.str_index = -1 ;
+ 	for (k = 0 ; k < rsrc.type_count ; k ++)
+-	{	marker = read_marker (rsrc.rsrc_data, rsrc.type_offset + k * 8) ;
++	{	if (rsrc.type_offset + k * 8 > rsrc.rsrc_len)
++		{	psf_log_printf (psf, "Bad rsrc marker.\n") ;
++			goto parse_rsrc_fork_cleanup ;
++			} ;
++
++		marker = read_rsrc_marker (&rsrc, rsrc.type_offset + k * 8) ;
+ 
+ 		if (marker == STR_MARKER)
+ 		{	rsrc.str_index = k ;