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authorMing Liu <ming.liu@windriver.com>2013-11-21 01:05:05 -0600
committerRichard Purdie <richard.purdie@linuxfoundation.org>2013-11-22 14:08:33 +0000
commit074a0ab2bfd147fd6f11cdf0b3f832bc08e3c703 (patch)
tree65ba9586e5a62ab9275a799093467fab8a10ff85 /meta/recipes-multimedia
parent05e9f1f8357e0f1d418b72af7d766063ade92ccd (diff)
downloadpoky-074a0ab2bfd147fd6f11cdf0b3f832bc08e3c703.tar.gz
gst-ffmpeg: fix CVE-2013-3674
The cdg_decode_frame function in cdgraphics.c in libavcodec in FFmpeg before 1.2.1 does not validate the presence of non-header data in a buffer, which allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) via crafted CD Graphics Video data. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-3674 (From OE-Core rev: f1721553a873b242bc26ad3e4d618aea39dfd507) Signed-off-by: Ming Liu <ming.liu@windriver.com> Signed-off-by: Jeff Polk <jeff.polk@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-multimedia')
-rw-r--r--meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/gst-ffmpeg-CVE-2013-3674.patch26
-rw-r--r--meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb3
2 files changed, 28 insertions, 1 deletions
diff --git a/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/gst-ffmpeg-CVE-2013-3674.patch b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/gst-ffmpeg-CVE-2013-3674.patch
new file mode 100644
index 0000000000..a28404b072
--- /dev/null
+++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/gst-ffmpeg-CVE-2013-3674.patch
@@ -0,0 +1,26 @@
1avcodec/cdgraphics: check buffer size before use
2
3Fixes out of array accesses
4
5Backported from:http://git.videolan.org/?p=ffmpeg.git;a=commit;h=ad002e1a13a8df934bd6cb2c84175a4780ab8942
6
7Upstream-status: Backport
8
9Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
10Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11Signed-off-by: Ming Liu <ming.liu@windriver.com>
12
13diff -urpN a/gst-libs/ext/libav/libavcodec/cdgraphics.c b/gst-libs/ext/libav/libavcodec/cdgraphics.c
14--- a/gst-libs/ext/libav/libavcodec/cdgraphics.c 2013-07-18 13:17:08.399876575 +0800
15+++ b/gst-libs/ext/libav/libavcodec/cdgraphics.c 2013-07-18 13:18:05.880502267 +0800
16@@ -291,7 +291,9 @@ static int cdg_decode_frame(AVCodecConte
17 inst = bytestream_get_byte(&buf);
18 inst &= CDG_MASK;
19 buf += 2; /// skipping 2 unneeded bytes
20- bytestream_get_buffer(&buf, cdg_data, buf_size - CDG_HEADER_SIZE);
21+
22+ if (buf_size > CDG_HEADER_SIZE)
23+ bytestream_get_buffer(&buf, cdg_data, buf_size - CDG_HEADER_SIZE);
24
25 if ((command & CDG_MASK) == CDG_COMMAND) {
26 switch (inst) {
diff --git a/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb b/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb
index 8873105049..e1257a2697 100644
--- a/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb
+++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb
@@ -22,12 +22,13 @@ SRC_URI = "http://gstreamer.freedesktop.org/src/${BPN}/${BPN}-${PV}.tar.bz2 \
22 file://h264_qpel_mmx.patch \ 22 file://h264_qpel_mmx.patch \
23 file://libav_e500mc.patch \ 23 file://libav_e500mc.patch \
24 file://libav_e5500.patch \ 24 file://libav_e5500.patch \
25 file://gst-ffmpeg-CVE-2013-3674.patch \
25" 26"
26 27
27SRC_URI[md5sum] = "7f5beacaf1312db2db30a026b36888c4" 28SRC_URI[md5sum] = "7f5beacaf1312db2db30a026b36888c4"
28SRC_URI[sha256sum] = "76fca05b08e00134e3cb92fa347507f42cbd48ddb08ed3343a912def187fbb62" 29SRC_URI[sha256sum] = "76fca05b08e00134e3cb92fa347507f42cbd48ddb08ed3343a912def187fbb62"
29 30
30PR = "r7" 31PR = "r8"
31 32
32GSTREAMER_DEBUG ?= "--disable-debug" 33GSTREAMER_DEBUG ?= "--disable-debug"
33 34