From: Yue Tao <[email protected]> The smacker_decode_header_tree function in libavcodec/smacker.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Smacker data.
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-3944 file://0001-huffyuvdec-check-width-more-completely-avoid-out-of-.patch \ Signed-off-by: Yue Tao <[email protected]> Signed-off-by: Roy Li <[email protected]> --- ...Check-that-the-last-indexes-are-within-th.patch | 32 ++++++++++++++++++++ .../gstreamer/gst-ffmpeg_0.10.13.bb | 1 + 2 files changed, 33 insertions(+) create mode 100644 meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-smackerdec-Check-that-the-last-indexes-are-within-th.patch diff --git a/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-smackerdec-Check-that-the-last-indexes-are-within-th.patch b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-smackerdec-Check-that-the-last-indexes-are-within-th.patch new file mode 100644 index 0000000..15b1614 --- /dev/null +++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg-0.10.13/0001-smackerdec-Check-that-the-last-indexes-are-within-th.patch @@ -0,0 +1,32 @@ +gst-ffmpeg: smackerdec: Check that the last indexes are within the + table. + +Fixes CVE-2011-3944 + +Upstream-Status: Backport + +Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind +Signed-off-by: Michael Niedermayer <[email protected]> +--- + libavcodec/smacker.c | 5 +++++ + 1 files changed, 5 insertions(+), 0 deletions(-) + +diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c +index 30f99b4..2a8bae8 100644 +--- a/gst-libs/ext/libav/libavcodec/smacker.c ++++ b/gst-libs/ext/libav/libavcodec/smacker.c +@@ -259,6 +259,11 @@ static int smacker_decode_header_tree(SmackVContext *smk, GetBitContext *gb, int + if(ctx.last[0] == -1) ctx.last[0] = huff.current++; + if(ctx.last[1] == -1) ctx.last[1] = huff.current++; + if(ctx.last[2] == -1) ctx.last[2] = huff.current++; ++ if(huff.current > huff.length){ ++ ctx.last[0] = ctx.last[1] = ctx.last[2] = 1; ++ av_log(smk->avctx, AV_LOG_ERROR, "bigtree damaged\n"); ++ return -1; ++ } + + *recodes = huff.values; + +-- +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 7e3d7d6..a540211 100644 --- a/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb +++ b/meta/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bb @@ -47,6 +47,7 @@ SRC_URI = "http://gstreamer.freedesktop.org/src/${BPN}/${BPN}-${PV}.tar.bz2 \ 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 \ + file://0001-smackerdec-Check-that-the-last-indexes-are-within-th.patch \ " SRC_URI[md5sum] = "7f5beacaf1312db2db30a026b36888c4" -- 1.7.10.4 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
