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-rw-r--r--meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-14634.patch42
1 files changed, 42 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-14634.patch b/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-14634.patch
new file mode 100644
index 0000000000..39b4ec1101
--- /dev/null
+++ b/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-14634.patch
@@ -0,0 +1,42 @@
1From 85c877d5072866aadbe8ed0c3e0590fbb5e16788 Mon Sep 17 00:00:00 2001
2From: Fabian Greffrath <fabian@greffrath.com>
3Date: Thu, 28 Sep 2017 12:15:04 +0200
4Subject: [PATCH] double64_init: Check psf->sf.channels against upper bound
5
6This prevents division by zero later in the code.
7
8While the trivial case to catch this (i.e. sf.channels < 1) has already
9been covered, a crafted file may report a number of channels that is
10so high (i.e. > INT_MAX/sizeof(double)) that it "somehow" gets
11miscalculated to zero (if this makes sense) in the determination of the
12blockwidth. Since we only support a limited number of channels anyway,
13make sure to check here as well.
14
15CVE: CVE-2017-14634
16
17Closes: https://github.com/erikd/libsndfile/issues/318
18
19Upstream-Status: Backport [https://github.com/erikd/libsndfile/commit/85c877d5072866aadbe8ed0c3e0590fbb5e16788]
20
21Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
22Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
23---
24 src/double64.c | 2 +-
25 1 file changed, 1 insertion(+), 1 deletion(-)
26
27diff --git a/src/double64.c b/src/double64.c
28index b318ea8..78dfef7 100644
29--- a/src/double64.c
30+++ b/src/double64.c
31@@ -91,7 +91,7 @@ int
32 double64_init (SF_PRIVATE *psf)
33 { static int double64_caps ;
34
35- if (psf->sf.channels < 1)
36+ if (psf->sf.channels < 1 || psf->sf.channels > SF_MAX_CHANNELS)
37 { psf_log_printf (psf, "double64_init : internal error : channels = %d\n", psf->sf.channels) ;
38 return SFE_INTERNAL ;
39 } ;
40--
412.13.3
42