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gst-ffmpeg: fix for Security Advisory CVE-2013-0849

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The roq_decode_init function in libavcodec/roqvideodec.c in FFmpeg
before 1.1 allows remote attackers to have an unspecified impact via a
crafted (1) width or (2) height dimension that is not a multiple of
sixteen in id RoQ video data.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-0849

(From OE-Core rev: 1a43a8054f51fbd542f3f037dc35f8b501e455bf)

Signed-off-by: Yue Tao <Yue.Tao@windriver.com>
Signed-off-by: Roy Li <rongqing.li@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Yue Tao
2014-04-28 11:12:34 +08:00
committed by Richard Purdie
parent c884618ff7
commit 7e7f6efa05
2 changed files with 37 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-roqvideodec-check-dimensions-validity.patch Normal file
View File

@@ -0,0 +1,36 @@
From 391e0fc6c90ced6656b74f50f3a487b6dc76ea63 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Thu, 29 Nov 2012 15:18:17 +0100
Subject: [PATCH] roqvideodec: check dimensions validity
Upstream-Status: Backport
Commit 391e0fc6c90ced6656b74f50f3a487b6dc76ea63 release/0.7
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3ae610451170cd5a28b33950006ff0bd23036845)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavcodec/roqvideodec.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libavcodec/roqvideodec.c b/libavcodec/roqvideodec.c
index f0977f6..4e34231 100644
--- a/gst-libs/ext/libav/libavcodec/roqvideodec.c
+++ b/gst-libs/ext/libav/libavcodec/roqvideodec.c
@@ -157,6 +157,12 @@ static av_cold int roq_decode_init(AVCodecContext *avctx)
RoqContext *s = avctx->priv_data;
s->avctx = avctx;
+
+ if (avctx->width%16 || avctx->height%16) {
+ av_log_ask_for_sample(avctx, "dimensions not being a multiple of 16 are unsupported\n");
+ return AVERROR_PATCHWELCOME;
+ }
+
s->width = avctx->width;
s->height = avctx->height;
avcodec_get_frame_defaults(&s->frames[0]);
--

1
meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb
View File

@@ -35,6 +35,7 @@ SRC_URI = "http://gstreamer.freedesktop.org/src/${BPN}/${BPN}-${PV}.tar.bz2 \
file://0001-mjpegdec-check-SE.patch \
file://0001-alac-fix-nb_samples-order-case.patch \
file://0001-h264-correct-ref-count-check-and-limit-fix-out-of-ar.patch \
file://0001-roqvideodec-check-dimensions-validity.patch \
"
SRC_URI[md5sum] = "7f5beacaf1312db2db30a026b36888c4"