From: Archana Polampalli <archana.polampa...@windriver.com> FFmpeg n6.1.1 has a vulnerability in the DXA demuxer of the libavformat library allowing for an integer overflow, potentially resulting in a denial-of-service (DoS) condition or other undefined behavior.
Signed-off-by: Archana Polampalli <archana.polampa...@windriver.com> --- .../ffmpeg/ffmpeg/CVE-2024-36613.patch | 37 +++++++++++++++++++ .../recipes-multimedia/ffmpeg/ffmpeg_6.1.1.bb | 1 + 2 files changed, 38 insertions(+) create mode 100644 meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2024-36613.patch diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2024-36613.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2024-36613.patch new file mode 100644 index 0000000000..0061b7ad98 --- /dev/null +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2024-36613.patch @@ -0,0 +1,37 @@ +From 50d8e4f27398fd5778485a827d7a2817921f8540 Mon Sep 17 00:00:00 2001 +From: Michael Niedermayer <mich...@niedermayer.cc> +Date: Sat, 30 Sep 2023 00:51:29 +0200 +Subject: [PATCH] avformat/dxa: Adjust order of operations around block align + +Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_dem_DXA_fuzzer-5730576523198464 +Fixes: signed integer overflow: 2147483566 + 82 cannot be represented in type 'int' + +Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg +Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> +(cherry picked from commit 50d8e4f27398fd5778485a827d7a2817921f8540) +Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> + +CVE: CVE-2024-36613 + +Upstream-Status: Backport [https://github.com/ffmpeg/ffmpeg/commit/50d8e4f27398fd5778485a827d7a2817921f8540] + +Signed-off-by: Archana Polampalli <archana.polampa...@windriver.com> +--- + libavformat/dxa.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/libavformat/dxa.c b/libavformat/dxa.c +index 474b852..b4d9d00 100644 +--- a/libavformat/dxa.c ++++ b/libavformat/dxa.c +@@ -122,7 +122,7 @@ static int dxa_read_header(AVFormatContext *s) + if(ast->codecpar->block_align) { + if (c->bpc > INT_MAX - ast->codecpar->block_align + 1) + return AVERROR_INVALIDDATA; +- c->bpc = ((c->bpc + ast->codecpar->block_align - 1) / ast->codecpar->block_align) * ast->codecpar->block_align; ++ c->bpc = ((c->bpc - 1 + ast->codecpar->block_align) / ast->codecpar->block_align) * ast->codecpar->block_align; + } + c->bytes_left = fsize; + c->wavpos = avio_tell(pb); +-- +2.40.0 diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_6.1.1.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_6.1.1.bb index fb3f954904..5e22fd4080 100644 --- a/meta/recipes-multimedia/ffmpeg/ffmpeg_6.1.1.bb +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_6.1.1.bb @@ -41,6 +41,7 @@ SRC_URI = " \ file://CVE-2024-35367.patch \ file://CVE-2024-35368.patch \ file://CVE-2024-35365.patch \ + file://CVE-2024-36613.patch \ " SRC_URI[sha256sum] = "8684f4b00f94b85461884c3719382f1261f0d9eb3d59640a1f4ac0873616f968" -- 2.40.0
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