From: Kiran Surendran <kiran.surend...@windriver.com> backport from upstream
Signed-off-by: Kiran Surendran <kiran.surend...@windriver.com> Signed-off-by: Anuj Mittal <anuj.mit...@intel.com> --- .../ffmpeg/ffmpeg/fix-CVE-2021-38171.patch | 40 +++++++++++++++++++ .../recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb | 1 + 2 files changed, 41 insertions(+) create mode 100644 meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2021-38171.patch diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2021-38171.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2021-38171.patch new file mode 100644 index 0000000000..8775acd8c5 --- /dev/null +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2021-38171.patch @@ -0,0 +1,40 @@ +CVE: CVE-2021-38171 +Upstream-Status: Backport +Signed-off-by: Kiran Surendran <kiran.surend...@windriver.com> + +From d5373a9efb10c1fa87698ee41370fb04dc2e410b Mon Sep 17 00:00:00 2001 +From: maryam ebrahimzadeh <me22...@outlook.com> +Date: Wed, 4 Aug 2021 16:15:18 -0400 +Subject: [PATCH] avformat/adtsenc: return value check for init_get_bits in + adts_decode_extradata + +As the second argument for init_get_bits (buf) can be crafted, a return value check for this function call is necessary. +'buf' is part of 'AVPacket pkt'. +replace init_get_bits with init_get_bits8. + +Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> +--- + libavformat/adtsenc.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/libavformat/adtsenc.c b/libavformat/adtsenc.c +index d937e2bea9..a1593515e1 100644 +--- a/libavformat/adtsenc.c ++++ b/libavformat/adtsenc.c +@@ -50,9 +50,11 @@ static int adts_decode_extradata(AVFormatContext *s, ADTSContext *adts, const ui + GetBitContext gb; + PutBitContext pb; + MPEG4AudioConfig m4ac; +- int off; ++ int off, ret; + +- init_get_bits(&gb, buf, size * 8); ++ ret = init_get_bits8(&gb, buf, size); ++ if (ret < 0) ++ return ret; + off = avpriv_mpeg4audio_get_config2(&m4ac, buf, size, 1, s); + if (off < 0) + return off; +-- +2.31.1 + diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb index 3e7ceb859f..3162617336 100644 --- a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb @@ -32,6 +32,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \ file://fix-CVE-2020-22021.patch \ file://fix-CVE-2020-22033-CVE-2020-22019.patch \ file://fix-CVE-2021-38291.patch \ + file://fix-CVE-2021-38171.patch \ " SRC_URI[sha256sum] = "46e4e64f1dd0233cbc0934b9f1c0da676008cad34725113fb7f802cfa84ccddb" -- 2.31.1
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