From: Yue Tao <[email protected]> The decode_init function in libavcodec/huffyuv.c in FFmpeg before 1.1 allows remote attackers to have an unspecified impact via a crafted width in huffyuv data with the predictor set to median and the colorspace set to YUV422P, which triggers an out-of-bounds array access.
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-0848 Signed-off-by: Yue Tao <[email protected]> Signed-off-by: Roy Li <[email protected]> --- ...check-width-more-completely-avoid-out-of-.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-huffyuvdec-check-width-more-completely-avoid-out-of-.patch diff --git a/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-huffyuvdec-check-width-more-completely-avoid-out-of-.patch b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-huffyuvdec-check-width-more-completely-avoid-out-of-.patch new file mode 100644 index 0000000..4dfaf04 --- /dev/null +++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-huffyuvdec-check-width-more-completely-avoid-out-of-.patch @@ -0,0 +1,30 @@ +gst-ffmpeg: huffyuvdec: check width more completely, avoid out of array + accesses + +Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind + +Upstream-Status: Pending + +Signed-off-by: Michael Niedermayer <[email protected]> +--- + libavcodec/huffyuv.c | 5 ++++- + 1 files changed, 4 insertions(+), 1 deletions(-) + +diff --git a/libavcodec/huffyuv.c b/libavcodec/huffyuv.c +index 6e88114..ca5bcd8 100644 +--- a/gst-libs/ext/libav/libavcodec/huffyuv.c ++++ b/gst-libs/ext/libav/libavcodec/huffyuv.c +@@ -526,6 +526,10 @@ s->bgr32=1; + assert(0); + } + ++ if (s->predictor == MEDIAN && avctx->pix_fmt == AV_PIX_FMT_YUV422P && avctx->width%4) { ++ av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 this colorspace and predictor\n"); ++ return AVERROR_INVALIDDATA; ++ } + alloc_temp(s); + + // av_log(NULL, AV_LOG_DEBUG, "pred:%d bpp:%d hbpp:%d il:%d\n", s->predictor, s->bitstream_bpp, avctx->bits_per_coded_sample, s->interlaced); +-- +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 345086e..7e3d7d6 100644 --- a/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb +++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb @@ -46,6 +46,7 @@ SRC_URI = "http://gstreamer.freedesktop.org/src/${BPN}/${BPN}-${PV}.tar.bz2 \ file://0001-avcodec-rpza-Perform-pointer-advance-and-checks-befo.patch \ file://gst-ffmpeg-CVE-2013-0855.patch \ file://0001-qdm2dec-fix-buffer-overflow.patch \ + file://0001-huffyuvdec-check-width-more-completely-avoid-out-of-.patch \ " SRC_URI[md5sum] = "7f5beacaf1312db2db30a026b36888c4" -- 1.7.10.4 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
