summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorTanu Kaskinen <tanuk@iki.fi>2018-03-31 08:24:26 +0300
committerRichard Purdie <richard.purdie@linuxfoundation.org>2018-04-05 15:11:16 +0100
commita7f1fa651620b98c211459e80e5d9608ce8f1866 (patch)
tree2819a64909b9db257a85bc2d9131dfd02e19498c
parentc8ffc0a4456065479240de18e6080e90a7ee85c1 (diff)
downloadopenembedded-core-a7f1fa651620b98c211459e80e5d9608ce8f1866.tar.gz
openembedded-core-a7f1fa651620b98c211459e80e5d9608ce8f1866.tar.bz2
openembedded-core-a7f1fa651620b98c211459e80e5d9608ce8f1866.zip
libvorbis: CVE-2017-14633
In Xiph.Org libvorbis 1.3.5, an out-of-bounds array read vulnerability exists in the function mapping0_forward() in mapping0.c, which may lead to DoS when operating on a crafted audio file with vorbis_analysis(). References: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14633 (From OE-Core rev: f398fb04549577922e6265c0969c6d6c35a11e7c) Signed-off-by: Tanu Kaskinen <tanuk@iki.fi> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster808@gmail.com>
-rw-r--r--meta/recipes-multimedia/libvorbis/libvorbis/CVE-2017-14633.patch42
-rw-r--r--meta/recipes-multimedia/libvorbis/libvorbis_1.3.5.bb4
2 files changed, 45 insertions, 1 deletions
diff --git a/meta/recipes-multimedia/libvorbis/libvorbis/CVE-2017-14633.patch b/meta/recipes-multimedia/libvorbis/libvorbis/CVE-2017-14633.patch
new file mode 100644
index 0000000000..9c9e688d43
--- /dev/null
+++ b/meta/recipes-multimedia/libvorbis/libvorbis/CVE-2017-14633.patch
@@ -0,0 +1,42 @@
+From 07eda55f336e5c44dfc0e4a1e21628faed7255fa Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
+Date: Tue, 31 Oct 2017 18:32:46 +0100
+Subject: [PATCH] CVE-2017-14633: Don't allow for more than 256 channels
+
+Otherwise
+
+ for(i=0;i<vi->channels;i++){
+ /* the encoder setup assumes that all the modes used by any
+ specific bitrate tweaking use the same floor */
+ int submap=info->chmuxlist[i];
+
+overreads later in mapping0_forward since chmuxlist is a fixed array of
+256 elements max.
+
+Upstream-Status: Backport
+CVE: CVE-2017-14633
+
+Reference to upstream patch:
+https://git.xiph.org/?p=vorbis.git;a=commitdiff;h=667ceb4aab60c1f74060143bb24e5f427b3cce5f
+
+Signed-off-by: Tanu Kaskinen <tanuk@iki.fi>
+---
+ lib/info.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/info.c b/lib/info.c
+index e447a0c..81b7557 100644
+--- a/lib/info.c
++++ b/lib/info.c
+@@ -583,7 +583,7 @@ int vorbis_analysis_headerout(vorbis_dsp_state *v,
+ oggpack_buffer opb;
+ private_state *b=v->backend_state;
+
+- if(!b||vi->channels<=0){
++ if(!b||vi->channels<=0||vi->channels>256){
+ ret=OV_EFAULT;
+ goto err_out;
+ }
+--
+2.16.2
+
diff --git a/meta/recipes-multimedia/libvorbis/libvorbis_1.3.5.bb b/meta/recipes-multimedia/libvorbis/libvorbis_1.3.5.bb
index 636e0f307b..75c2038800 100644
--- a/meta/recipes-multimedia/libvorbis/libvorbis_1.3.5.bb
+++ b/meta/recipes-multimedia/libvorbis/libvorbis_1.3.5.bb
@@ -10,7 +10,9 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=7d2c487d2fc7dd3e3c7c465a5b7f6217 \
file://include/vorbis/vorbisenc.h;beginline=1;endline=11;md5=d1c1d138863d6315131193d4046d81cb"
DEPENDS = "libogg"
-SRC_URI = "http://downloads.xiph.org/releases/vorbis/${BP}.tar.xz"
+SRC_URI = "http://downloads.xiph.org/releases/vorbis/${BP}.tar.xz \
+ file://CVE-2017-14633.patch \
+ "
SRC_URI[md5sum] = "28cb28097c07a735d6af56e598e1c90f"
SRC_URI[sha256sum] = "54f94a9527ff0a88477be0a71c0bab09a4c3febe0ed878b24824906cd4b0e1d1"