From: Archana Polampalli <archana.polampa...@windriver.com> Buffer Overflow vulnerability in Ffmpeg v.n6.1-3-g466799d4f5 allows a local attacker to execute arbitrary code via theav_samples_set_silence function in the libavutil/samplefmt.c:260:9 component.
Signed-off-by: Archana Polampalli <archana.polampa...@windriver.com> Signed-off-by: Steve Sakoman <st...@sakoman.com> --- .../ffmpeg/ffmpeg/CVE-2023-50007.patch | 78 +++++++++++++++++++ .../recipes-multimedia/ffmpeg/ffmpeg_5.0.1.bb | 1 + 2 files changed, 79 insertions(+) create mode 100644 meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2023-50007.patch diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2023-50007.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2023-50007.patch new file mode 100644 index 0000000000..fd4dc486ee --- /dev/null +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2023-50007.patch @@ -0,0 +1,78 @@ +From b1942734c7cbcdc9034034373abcc9ecb9644c47 Mon Sep 17 00:00:00 2001 +From: Paul B Mahol <one...@gmail.com> +Date: Mon, 27 Nov 2023 11:45:34 +0100 +Subject: [PATCH 2/4] avfilter/af_afwtdn: fix crash with EOF handling + +CVE: CVE-2023-50007 + +Upstream-Status: Backport [https://github.com/FFmpeg/FFmpeg/commit/b1942734c7cbcdc9034034373abcc9ecb9644c47] + +Signed-off-by: Archana Polampalli <archana.polampa...@windriver.com> +--- + libavfilter/af_afwtdn.c | 34 +++++++++++++++++++--------------- + 1 file changed, 19 insertions(+), 15 deletions(-) + +diff --git a/libavfilter/af_afwtdn.c b/libavfilter/af_afwtdn.c +index 09b504d..1839190 100644 +--- a/libavfilter/af_afwtdn.c ++++ b/libavfilter/af_afwtdn.c +@@ -410,6 +410,7 @@ typedef struct AudioFWTDNContext { + + uint64_t sn; + int64_t eof_pts; ++ int eof; + + int wavelet_type; + int channels; +@@ -1071,7 +1072,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) + s->drop_samples = 0; + } else { + if (s->padd_samples < 0 && eof) { +- out->nb_samples += s->padd_samples; ++ out->nb_samples = FFMAX(0, out->nb_samples + s->padd_samples); + s->padd_samples = 0; + } + if (!eof) +@@ -1210,23 +1211,26 @@ static int activate(AVFilterContext *ctx) + + FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink); + +- ret = ff_inlink_consume_samples(inlink, s->nb_samples, s->nb_samples, &in); +- if (ret < 0) +- return ret; +- if (ret > 0) +- return filter_frame(inlink, in); ++ if (!s->eof) { ++ ret = ff_inlink_consume_samples(inlink, s->nb_samples, s->nb_samples, &in); ++ if (ret < 0) ++ return ret; ++ if (ret > 0) ++ return filter_frame(inlink, in); ++ } + + if (ff_inlink_acknowledge_status(inlink, &status, &pts)) { +- if (status == AVERROR_EOF) { +- while (s->padd_samples != 0) { +- ret = filter_frame(inlink, NULL); +- if (ret < 0) +- return ret; +- } +- ff_outlink_set_status(outlink, status, pts); +- return ret; +- } ++ if (status == AVERROR_EOF) ++ s->eof = 1; + } ++ ++ if (s->eof && s->padd_samples != 0) { ++ return filter_frame(inlink, NULL); ++ } else if (s->eof) { ++ ff_outlink_set_status(outlink, AVERROR_EOF, s->eof_pts); ++ return 0; ++ } ++ + FF_FILTER_FORWARD_WANTED(outlink, inlink); + + return FFERROR_NOT_READY; +-- +2.40.0 diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_5.0.1.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_5.0.1.bb index d233ced662..ee13081e4d 100644 --- a/meta/recipes-multimedia/ffmpeg/ffmpeg_5.0.1.bb +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_5.0.1.bb @@ -37,6 +37,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \ file://CVE-2023-51794.patch \ file://CVE-2023-51798.patch \ file://CVE-2023-47342.patch \ + file://CVE-2023-50007.patch \ " SRC_URI[sha256sum] = "ef2efae259ce80a240de48ec85ecb062cecca26e4352ffb3fda562c21a93007b" -- 2.34.1
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#207949): https://lists.openembedded.org/g/openembedded-core/message/207949 Mute This Topic: https://lists.openembedded.org/mt/109811166/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
