diff options
| author |   Tony Tascioglu <tony.tascioglu@windriver.com> | 2021-08-20 14:31:55 -0700 |
|---|---|---|
| committer |   Anuj Mittal <anuj.mittal@intel.com> | 2021-08-23 09:33:55 +0800 |
| commit | c10b49e2e8de02c1c6e6a57eab526ac9ebec066f (patch) | |
| tree | 2bfdf348a0984c42c0b2a3b24cfacf096f8ce397 | |
| parent | 5e460d2c5d9d4d62cb3fcf090040f4bd1fe30e1f (diff) | |
| download | openembedded-core-contrib-c10b49e2e8de02c1c6e6a57eab526ac9ebec066f.tar.gz | |
ffmpeg: fix CVE-2020-22015
avformat/movenc: Check pal_size before use
Fixes: assertion failure
Fixes: out of array read
Fixes: Ticket8190
Fixes: CVE-2020-22015
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
CVE: CVE-2020-22015
Upstream-Status: Backport [4c1afa292520329eecd1cc7631bc59a8cca95c46]
Signed-off-by: Tony Tascioglu <tony.tascioglu@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
| -rw-r--r-- | meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-22015.patch | 44 | ||||
| -rw-r--r-- | meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb | 1 |
2 files changed, 45 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-22015.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-22015.patch new file mode 100644 index 0000000000..1fdb31de7d --- /dev/null +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-22015.patch @@ -0,0 +1,44 @@ +From dce5d2c2ee991f8cd96ab74d51a2d1a134a1a645 Mon Sep 17 00:00:00 2001 +From: Michael Niedermayer <michael@niedermayer.cc> +Date: Sat, 29 May 2021 09:22:27 +0200 +Subject: [PATCH 3/5] avformat/movenc: Check pal_size before use + +Fixes: assertion failure +Fixes: out of array read +Fixes: Ticket8190 +Fixes: CVE-2020-22015 + +Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> + + +CVE: CVE-2020-22015 +Upstream-Status: Backport [4c1afa292520329eecd1cc7631bc59a8cca95c46] + +Signed-off-by: Tony Tascioglu <tony.tascioglu@windriver.com> +--- + libavformat/movenc.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/libavformat/movenc.c b/libavformat/movenc.c +index c34d86522a..9603704083 100644 +--- a/libavformat/movenc.c ++++ b/libavformat/movenc.c +@@ -2094,11 +2094,13 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex + avio_wb16(pb, 0x18); /* Reserved */ + + if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) { +- int pal_size = 1 << track->par->bits_per_coded_sample; +- int i; ++ int pal_size, i; + avio_wb16(pb, 0); /* Color table ID */ + avio_wb32(pb, 0); /* Color table seed */ + avio_wb16(pb, 0x8000); /* Color table flags */ ++ if (track->par->bits_per_coded_sample < 0 || track->par->bits_per_coded_sample > 8) ++ return AVERROR(EINVAL); ++ pal_size = 1 << track->par->bits_per_coded_sample; + avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */ + for (i = 0; i < pal_size; i++) { + uint32_t rgb = track->palette[i]; +-- +2.32.0 + diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb index 3917ad9c2c..c9c82b0398 100644 --- a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb @@ -28,6 +28,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \ file://0001-libavutil-include-assembly-with-full-path-from-sourc.patch \ file://fix-CVE-2020-20446.patch \ file://fix-CVE-2020-20453.patch \ + file://fix-CVE-2020-22015.patch \ " SRC_URI[sha256sum] = "46e4e64f1dd0233cbc0934b9f1c0da676008cad34725113fb7f802cfa84ccddb" |