diff options
| author |   Ming Liu <ming.liu@windriver.com> | 2013-11-21 01:05:05 -0600 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2013-11-22 13:39:59 +0000 |
| commit | f1721553a873b242bc26ad3e4d618aea39dfd507 (patch) | |
| tree | 50e021eb7bc3a8a67fc90135975ef50f30c40788 | |
| parent | b7a8daf52c9befc773f320e54999bb91efdac334 (diff) | |
| download | openembedded-core-f1721553a873b242bc26ad3e4d618aea39dfd507.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
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>
| -rw-r--r-- | meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/gst-ffmpeg-CVE-2013-3674.patch | 26 | ||||
| -rw-r--r-- | meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb | 3 |
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 @@ +avcodec/cdgraphics: check buffer size before use + +Fixes out of array accesses + +Backported from:http://git.videolan.org/?p=ffmpeg.git;a=commit;h=ad002e1a13a8df934bd6cb2c84175a4780ab8942 + +Upstream-status: Backport + +Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind +Signed-off-by: Michael Niedermayer <michaelni@gmx.at> +Signed-off-by: Ming Liu <ming.liu@windriver.com> + +diff -urpN a/gst-libs/ext/libav/libavcodec/cdgraphics.c b/gst-libs/ext/libav/libavcodec/cdgraphics.c +--- a/gst-libs/ext/libav/libavcodec/cdgraphics.c 2013-07-18 13:17:08.399876575 +0800 ++++ b/gst-libs/ext/libav/libavcodec/cdgraphics.c 2013-07-18 13:18:05.880502267 +0800 +@@ -291,7 +291,9 @@ static int cdg_decode_frame(AVCodecConte + inst = bytestream_get_byte(&buf); + inst &= CDG_MASK; + buf += 2; /// skipping 2 unneeded bytes +- bytestream_get_buffer(&buf, cdg_data, buf_size - CDG_HEADER_SIZE); ++ ++ if (buf_size > CDG_HEADER_SIZE) ++ bytestream_get_buffer(&buf, cdg_data, buf_size - CDG_HEADER_SIZE); + + if ((command & CDG_MASK) == CDG_COMMAND) { + 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 \ file://h264_qpel_mmx.patch \ file://libav_e500mc.patch \ file://libav_e5500.patch \ + file://gst-ffmpeg-CVE-2013-3674.patch \ " SRC_URI[md5sum] = "7f5beacaf1312db2db30a026b36888c4" SRC_URI[sha256sum] = "76fca05b08e00134e3cb92fa347507f42cbd48ddb08ed3343a912def187fbb62" -PR = "r7" +PR = "r8" GSTREAMER_DEBUG ?= "--disable-debug" |