From d92877ade8fd4dd9b548c6b664bf4357a1f9428a Mon Sep 17 00:00:00 2001 From: Jackie Huang Date: Thu, 17 Aug 2017 14:44:27 +0800 Subject: libsndfile1: Fix CVE-2017-8361 and CVE-2017-8365 Backport the patch to fix two CVEs: CVE-2017-8361: The flac_buffer_copy function in flac.c in libsndfile 1.0.28 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted audio file. CVE-2017-8365: The i2les_array function in pcm.c in libsndfile 1.0.28 allows remote attackers to cause a denial of service (buffer over-read and application crash) via a crafted audio file. Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-8361 https://nvd.nist.gov/vuln/detail/CVE-2017-8365 Signed-off-by: Jackie Huang Signed-off-by: Richard Purdie --- .../libsndfile1/CVE-2017-8361-8365.patch | 73 ++++++++++++++++++++++ .../libsndfile/libsndfile1_1.0.28.bb | 1 + 2 files changed, 74 insertions(+) create mode 100644 meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-8361-8365.patch (limited to 'meta/recipes-multimedia/libsndfile') diff --git a/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-8361-8365.patch b/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-8361-8365.patch new file mode 100644 index 0000000000..ac99516bb3 --- /dev/null +++ b/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2017-8361-8365.patch @@ -0,0 +1,73 @@ +From fd0484aba8e51d16af1e3a880f9b8b857b385eb3 Mon Sep 17 00:00:00 2001 +From: Erik de Castro Lopo +Date: Wed, 12 Apr 2017 19:45:30 +1000 +Subject: [PATCH] FLAC: Fix a buffer read overrun + +Buffer read overrun occurs when reading a FLAC file that switches +from 2 channels to one channel mid-stream. Only option is to +abort the read. + +Closes: https://github.com/erikd/libsndfile/issues/230 + +CVE: CVE-2017-8361 CVE-2017-8365 + +Upstream-Status: Backport [https://github.com/erikd/libsndfile/commit/fd0484aba8e51d16af1e3a880f9b8b857b385eb3] + +Signed-off-by: Jackie Huang +--- + src/common.h | 1 + + src/flac.c | 13 +++++++++++++ + src/sndfile.c | 1 + + 3 files changed, 15 insertions(+) + +diff --git a/src/common.h b/src/common.h +index 0bd810c..e2669b6 100644 +--- a/src/common.h ++++ b/src/common.h +@@ -725,6 +725,7 @@ enum + SFE_FLAC_INIT_DECODER, + SFE_FLAC_LOST_SYNC, + SFE_FLAC_BAD_SAMPLE_RATE, ++ SFE_FLAC_CHANNEL_COUNT_CHANGED, + SFE_FLAC_UNKOWN_ERROR, + + SFE_WVE_NOT_WVE, +diff --git a/src/flac.c b/src/flac.c +index 84de0e2..986a7b8 100644 +--- a/src/flac.c ++++ b/src/flac.c +@@ -434,6 +434,19 @@ sf_flac_meta_callback (const FLAC__StreamDecoder * UNUSED (decoder), const FLAC_ + + switch (metadata->type) + { case FLAC__METADATA_TYPE_STREAMINFO : ++ if (psf->sf.channels > 0 && psf->sf.channels != (int) metadata->data.stream_info.channels) ++ { psf_log_printf (psf, "Error: FLAC stream changed from %d to %d channels\n" ++ "Nothing to be but to error out.\n" , ++ psf->sf.channels, metadata->data.stream_info.channels) ; ++ psf->error = SFE_FLAC_CHANNEL_COUNT_CHANGED ; ++ return ; ++ } ; ++ ++ if (psf->sf.channels > 0 && psf->sf.samplerate != (int) metadata->data.stream_info.sample_rate) ++ { psf_log_printf (psf, "Warning: FLAC stream changed sample rates from %d to %d.\n" ++ "Carrying on as if nothing happened.", ++ psf->sf.samplerate, metadata->data.stream_info.sample_rate) ; ++ } ; + psf->sf.channels = metadata->data.stream_info.channels ; + psf->sf.samplerate = metadata->data.stream_info.sample_rate ; + psf->sf.frames = metadata->data.stream_info.total_samples ; +diff --git a/src/sndfile.c b/src/sndfile.c +index 4187561..e2a87be 100644 +--- a/src/sndfile.c ++++ b/src/sndfile.c +@@ -245,6 +245,7 @@ ErrorStruct SndfileErrors [] = + { SFE_FLAC_INIT_DECODER , "Error : problem with initialization of the flac decoder." }, + { SFE_FLAC_LOST_SYNC , "Error : flac decoder lost sync." }, + { SFE_FLAC_BAD_SAMPLE_RATE, "Error : flac does not support this sample rate." }, ++ { SFE_FLAC_CHANNEL_COUNT_CHANGED, "Error : flac channel changed mid stream." }, + { SFE_FLAC_UNKOWN_ERROR , "Error : unknown error in flac decoder." }, + + { SFE_WVE_NOT_WVE , "Error : not a WVE file." }, +-- +2.7.4 + diff --git a/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.28.bb b/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.28.bb index e6a92a2a41..f80ce2fc99 100644 --- a/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.28.bb +++ b/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.28.bb @@ -7,6 +7,7 @@ LICENSE = "LGPLv2.1" SRC_URI = "http://www.mega-nerd.com/libsndfile/files/libsndfile-${PV}.tar.gz \ file://CVE-2017-6892.patch \ + file://CVE-2017-8361-8365.patch \ " SRC_URI[md5sum] = "646b5f98ce89ac60cdb060fcd398247c" -- cgit 1.2.3-korg