diff options
Diffstat (limited to 'user/libsndfile/CVE-2017-8361_CVE-2017-8363_CVE-2017-8365.patch')
| -rw-r--r-- | user/libsndfile/CVE-2017-8361_CVE-2017-8363_CVE-2017-8365.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/user/libsndfile/CVE-2017-8361_CVE-2017-8363_CVE-2017-8365.patch b/user/libsndfile/CVE-2017-8361_CVE-2017-8363_CVE-2017-8365.patch new file mode 100644 index 000000000..1dc5b57f1 --- /dev/null +++ b/user/libsndfile/CVE-2017-8361_CVE-2017-8363_CVE-2017-8365.patch @@ -0,0 +1,64 @@ +From fd0484aba8e51d16af1e3a880f9b8b857b385eb3 Mon Sep 17 00:00:00 2001 +From: Erik de Castro Lopo <erikd@mega-nerd.com> +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 +--- + 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 0bd810c3..e2669b6a 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 84de0e26..986a7b8f 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 41875610..e2a87be8 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." }, |