[OE-core] [PATCH 14/16] gst-ffmpeg: Security Advisory - ffmpeg - CVE-2013-0846
rongqing.li at windriver.com
rongqing.li at windriver.com
Tue Jul 22 06:16:15 UTC 2014
From: Yue Tao <Yue.Tao at windriver.com>
Array index error in the qdm2_decode_super_block function in
libavcodec/qdm2.c in FFmpeg before 1.1 allows remote attackers to have
an unspecified impact via crafted QDM2 data, which triggers an
out-of-bounds array access.
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-0846
Signed-off-by: Yue Tao <Yue.Tao at windriver.com>
Signed-off-by: Roy Li <rongqing.li at windriver.com>
---
...array-index-before-use-fix-out-of-array-a.patch | 30 ++++++++++++++++++++
.../gstreamer/gst-ffmpeg_0.10.13.bb | 1 +
2 files changed, 31 insertions(+)
create mode 100644 meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-qdm2-check-array-index-before-use-fix-out-of-array-a.patch
diff --git a/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-qdm2-check-array-index-before-use-fix-out-of-array-a.patch b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-qdm2-check-array-index-before-use-fix-out-of-array-a.patch
new file mode 100644
index 0000000..0f9e335
--- /dev/null
+++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-qdm2-check-array-index-before-use-fix-out-of-array-a.patch
@@ -0,0 +1,30 @@
+gst-ffmpeg: qdm2: check array index before use, fix out of array
+ accesses
+
+Upsream-Status: Pending
+
+Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
+Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
+---
+ libavcodec/qdm2.c | 5 +++++
+ 1 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c
+index 4cf4b2f..1dfb8d5 100644
+--- a/gst-libs/ext/libav/libavcodec/qdm2.c
++++ b/gst-libs/ext/libav/libavcodec/qdm2.c
+@@ -1257,6 +1257,11 @@ static void qdm2_decode_super_block (QDM2Context *q)
+ for (i = 0; packet_bytes > 0; i++) {
+ int j;
+
++ if (i>=FF_ARRAY_ELEMS(q->sub_packet_list_A)) {
++ SAMPLES_NEEDED_2("too many packet bytes");
++ return;
++ }
++
+ q->sub_packet_list_A[i].next = NULL;
+
+ if (i > 0) {
+--
+1.7.5.4
+
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 dd07435..7806006 100644
--- a/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb
+++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb
@@ -50,6 +50,7 @@ SRC_URI = "http://gstreamer.freedesktop.org/src/${BPN}/${BPN}-${PV}.tar.bz2 \
file://0001-smackerdec-Check-that-the-last-indexes-are-within-th.patch \
file://0001-avcodec-dsputil-fix-signedness-in-sizeof-comparissio.patch \
file://0001-error-concealment-initialize-block-index.patch \
+ file://0001-qdm2-check-array-index-before-use-fix-out-of-array-a.patch \
"
SRC_URI[md5sum] = "7f5beacaf1312db2db30a026b36888c4"
--
1.7.10.4
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