diff options
author | Ming Liu <ming.liu@windriver.com> | 2013-11-21 01:05:05 -0600 |
---|---|---|
committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2013-12-12 17:00:22 +0000 |
commit | d42a2c38138442a8177d69c9c8c0ed0e780b2e65 (patch) | |
tree | 138e2528d5a745ef07aeb0708b22a2c4f2a58941 /meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/gst-ffmpeg-CVE-2013-3674.patch | |
parent | 532660dcfe8d7f90f5a431ed65832e29a7c29f0e (diff) | |
download | poky-d42a2c38138442a8177d69c9c8c0ed0e780b2e65.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 master rev: f1721553a873b242bc26ad3e4d618aea39dfd507)
(From OE-Core rev: d4d908afca1c6ce64f05fabdadfcf86ab990dd0f)
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>
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/gst-ffmpeg-CVE-2013-3674.patch')
-rw-r--r-- | meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/gst-ffmpeg-CVE-2013-3674.patch | 26 |
1 files changed, 26 insertions, 0 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 @@ | |||
1 | avcodec/cdgraphics: check buffer size before use | ||
2 | |||
3 | Fixes out of array accesses | ||
4 | |||
5 | Backported from:http://git.videolan.org/?p=ffmpeg.git;a=commit;h=ad002e1a13a8df934bd6cb2c84175a4780ab8942 | ||
6 | |||
7 | Upstream-status: Backport | ||
8 | |||
9 | Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind | ||
10 | Signed-off-by: Michael Niedermayer <michaelni@gmx.at> | ||
11 | Signed-off-by: Ming Liu <ming.liu@windriver.com> | ||
12 | |||
13 | diff -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) { | ||