mirrors/poky
1
0
Fork 0
mirror of https://git.yoctoproject.org/poky synced 2026-04-17 18:32:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

libsndfile1: CVE-2017-14634

Browse Source 
double64_init: Check psf->sf.channels against upper bound

This prevents division by zero later in the code.

While the trivial case to catch this (i.e. sf.channels < 1) has already
been covered, a crafted file may report a number of channels that is
so high (i.e. > INT_MAX/sizeof(double)) that it "somehow" gets
miscalculated to zero (if this makes sense) in the determination of the
blockwidth. Since we only support a limited number of channels anyway,
make sure to check here as well.

CVE-2017-14634

Closes: #318

Affects libsndfile1 = 1.0.28

(From OE-Core rev: 00da7bad24cf78c9dba091b9e480515f25886b48)

Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Jagadeesh Krishnanjanappa
2018-08-22 18:49:58 +05:30
committed by Richard Purdie
parent 3c38e69639
commit c035a20028
2 changed files with 43 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-14634.patch Normal file
View File

@@ -0,0 +1,42 @@
From 85c877d5072866aadbe8ed0c3e0590fbb5e16788 Mon Sep 17 00:00:00 2001
From: Fabian Greffrath <fabian@greffrath.com>
Date: Thu, 28 Sep 2017 12:15:04 +0200
Subject: [PATCH] double64_init: Check psf->sf.channels against upper bound
This prevents division by zero later in the code.
While the trivial case to catch this (i.e. sf.channels < 1) has already
been covered, a crafted file may report a number of channels that is
so high (i.e. > INT_MAX/sizeof(double)) that it "somehow" gets
miscalculated to zero (if this makes sense) in the determination of the
blockwidth. Since we only support a limited number of channels anyway,
make sure to check here as well.
CVE: CVE-2017-14634
Closes: https://github.com/erikd/libsndfile/issues/318
Upstream-Status: Backport [https://github.com/erikd/libsndfile/commit/85c877d5072866aadbe8ed0c3e0590fbb5e16788]
Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
---
src/double64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/double64.c b/src/double64.c
index b318ea8..78dfef7 100644
--- a/src/double64.c
+++ b/src/double64.c
@@ -91,7 +91,7 @@ int
double64_init (SF_PRIVATE *psf)
{ static int double64_caps ;
- if (psf->sf.channels < 1)
+ if (psf->sf.channels < 1 || psf->sf.channels > SF_MAX_CHANNELS)
{ psf_log_printf (psf, "double64_init : internal error : channels = %d\n", psf->sf.channels) ;
return SFE_INTERNAL ;
} ;
--
2.13.3

1
meta/recipes-multimedia/libsndfile/libsndfile1_1.0.28.bb
View File

@@ -11,6 +11,7 @@ SRC_URI = "http://www.mega-nerd.com/libsndfile/files/libsndfile-${PV}.tar.gz \
file://CVE-2017-8362.patch \
file://CVE-2017-8363.patch \
file://CVE-2017-14245-14246.patch \
file://CVE-2017-14634.patch \
"
SRC_URI[md5sum] = "646b5f98ce89ac60cdb060fcd398247c"