From: Archana Polampalli <[email protected]> Buffer Overflow vulnerability in FFmpeg version n6.1-3-g466799d4f5, allows a local attacker to execute arbitrary code and cause a denial of service (DoS) via the af_dialoguenhance.c:261:5 in the de_stereo component.
Signed-off-by: Archana Polampalli <[email protected]> --- .../ffmpeg/ffmpeg/CVE-2023-49528.patch | 58 +++++++++++++++++++ .../recipes-multimedia/ffmpeg/ffmpeg_6.1.1.bb | 1 + 2 files changed, 59 insertions(+) create mode 100644 meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2023-49528.patch diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2023-49528.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2023-49528.patch new file mode 100644 index 0000000000..37e1ab61d1 --- /dev/null +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2023-49528.patch @@ -0,0 +1,58 @@ +From 2d9ed64859c9887d0504cd71dbd5b2c15e14251a Mon Sep 17 00:00:00 2001 +From: Paul B Mahol <[email protected]> +Date: Sat, 25 Nov 2023 12:54:28 +0100 +Subject: [PATCH 3/3] avfilter/af_dialoguenhance: fix overreads + +CVE: CVE-2023-49528 + +Upstream-Status: Backport [https://github.com/ffmpeg/ffmpeg/commit/2d9ed64859c9887d0504cd71dbd5b2c15e14251a] + +Signed-off-by: Archana Polampalli <[email protected]> +--- + libavfilter/af_dialoguenhance.c | 17 +++++++++-------- + 1 file changed, 9 insertions(+), 8 deletions(-) + +diff --git a/libavfilter/af_dialoguenhance.c b/libavfilter/af_dialoguenhance.c +index 1762ea7..29c8ab1 100644 +--- a/libavfilter/af_dialoguenhance.c ++++ b/libavfilter/af_dialoguenhance.c +@@ -96,12 +96,12 @@ static int config_input(AVFilterLink *inlink) + if (!s->window) + return AVERROR(ENOMEM); + +- s->in_frame = ff_get_audio_buffer(inlink, s->fft_size * 4); +- s->center_frame = ff_get_audio_buffer(inlink, s->fft_size * 4); +- s->out_dist_frame = ff_get_audio_buffer(inlink, s->fft_size * 4); +- s->windowed_frame = ff_get_audio_buffer(inlink, s->fft_size * 4); +- s->windowed_out = ff_get_audio_buffer(inlink, s->fft_size * 4); +- s->windowed_prev = ff_get_audio_buffer(inlink, s->fft_size * 4); ++ s->in_frame = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2); ++ s->center_frame = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2); ++ s->out_dist_frame = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2); ++ s->windowed_frame = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2); ++ s->windowed_out = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2); ++ s->windowed_prev = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2); + if (!s->in_frame || !s->windowed_out || !s->windowed_prev || + !s->out_dist_frame || !s->windowed_frame || !s->center_frame) + return AVERROR(ENOMEM); +@@ -250,6 +250,7 @@ static int de_stereo(AVFilterContext *ctx, AVFrame *out) + float *right_osamples = (float *)out->extended_data[1]; + float *center_osamples = (float *)out->extended_data[2]; + const int offset = s->fft_size - s->overlap; ++ const int nb_samples = FFMIN(s->overlap, s->in->nb_samples); + float vad; + + // shift in/out buffers +@@ -258,8 +259,8 @@ static int de_stereo(AVFilterContext *ctx, AVFrame *out) + memmove(left_out, &left_out[s->overlap], offset * sizeof(float)); + memmove(right_out, &right_out[s->overlap], offset * sizeof(float)); + +- memcpy(&left_in[offset], left_samples, s->overlap * sizeof(float)); +- memcpy(&right_in[offset], right_samples, s->overlap * sizeof(float)); ++ memcpy(&left_in[offset], left_samples, nb_samples * sizeof(float)); ++ memcpy(&right_in[offset], right_samples, nb_samples * sizeof(float)); + memset(&left_out[offset], 0, s->overlap * sizeof(float)); + memset(&right_out[offset], 0, s->overlap * sizeof(float)); + +-- +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 cac122f8b9..20ad368594 100644 --- a/meta/recipes-multimedia/ffmpeg/ffmpeg_6.1.1.bb +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_6.1.1.bb @@ -35,6 +35,7 @@ SRC_URI = " \ file://CVE-2023-49501.patch \ file://CVE-2024-28661.patch \ file://CVE-2023-50007.patch \ + file://CVE-2023-49528.patch \ " SRC_URI[sha256sum] = "8684f4b00f94b85461884c3719382f1261f0d9eb3d59640a1f4ac0873616f968" -- 2.40.0
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#208425): https://lists.openembedded.org/g/openembedded-core/message/208425 Mute This Topic: https://lists.openembedded.org/mt/109957021/21656 Group Owner: [email protected] Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
