gnu: libsndfile: Fix CVE-2017-{8361,8362,8363,8365}.
* gnu/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch, gnu/packages/patches/libsndfile-CVE-2017-8362.patch: New files. * gnu/local.mk (dist_patch_DATA): Add them. * gnu/packages/pulseaudio.scm (libsndfile)[replacement]: New field. (libsndfile/fixed): New variable.
This commit is contained in:
Leo Famulari
parent
d5b091290d
commit
1c4a500aae
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@ -719,6 +719,8 @@ dist_patch_DATA = \
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%D%/packages/patches/libmad-frame-length.patch \
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%D%/packages/patches/libmad-mips-newgcc.patch \
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%D%/packages/patches/libsndfile-armhf-type-checks.patch \
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%D%/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch \
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%D%/packages/patches/libsndfile-CVE-2017-8362.patch \
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%D%/packages/patches/libssh2-fix-build-failure-with-gcrypt.patch \
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%D%/packages/patches/libtar-CVE-2013-4420.patch \
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%D%/packages/patches/libtheora-config-guess.patch \
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@ -0,0 +1,77 @@
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Fix CVE-2017-{8361,8363,8365}:
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8361
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8363
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8365
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Patch copied from upstream source repository:
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https://github.com/erikd/libsndfile/commit/fd0484aba8e51d16af1e3a880f9b8b857b385eb3
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From fd0484aba8e51d16af1e3a880f9b8b857b385eb3 Mon Sep 17 00:00:00 2001
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From: Erik de Castro Lopo <erikd@mega-nerd.com>
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Date: Wed, 12 Apr 2017 19:45:30 +1000
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Subject: [PATCH] FLAC: Fix a buffer read overrun
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Buffer read overrun occurs when reading a FLAC file that switches
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from 2 channels to one channel mid-stream. Only option is to
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abort the read.
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Closes: https://github.com/erikd/libsndfile/issues/230
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---
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src/common.h | 1 +
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src/flac.c | 13 +++++++++++++
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src/sndfile.c | 1 +
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3 files changed, 15 insertions(+)
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diff --git a/src/common.h b/src/common.h
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index 0bd810c3..e2669b6a 100644
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--- a/src/common.h
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+++ b/src/common.h
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@@ -725,6 +725,7 @@ enum
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SFE_FLAC_INIT_DECODER,
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SFE_FLAC_LOST_SYNC,
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SFE_FLAC_BAD_SAMPLE_RATE,
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+ SFE_FLAC_CHANNEL_COUNT_CHANGED,
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SFE_FLAC_UNKOWN_ERROR,
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SFE_WVE_NOT_WVE,
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diff --git a/src/flac.c b/src/flac.c
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index 84de0e26..986a7b8f 100644
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--- a/src/flac.c
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+++ b/src/flac.c
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@@ -434,6 +434,19 @@ sf_flac_meta_callback (const FLAC__StreamDecoder * UNUSED (decoder), const FLAC_
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switch (metadata->type)
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{ case FLAC__METADATA_TYPE_STREAMINFO :
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+ if (psf->sf.channels > 0 && psf->sf.channels != (int) metadata->data.stream_info.channels)
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+ { psf_log_printf (psf, "Error: FLAC stream changed from %d to %d channels\n"
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+ "Nothing to be but to error out.\n" ,
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+ psf->sf.channels, metadata->data.stream_info.channels) ;
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+ psf->error = SFE_FLAC_CHANNEL_COUNT_CHANGED ;
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+ return ;
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+ } ;
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+
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+ if (psf->sf.channels > 0 && psf->sf.samplerate != (int) metadata->data.stream_info.sample_rate)
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+ { psf_log_printf (psf, "Warning: FLAC stream changed sample rates from %d to %d.\n"
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+ "Carrying on as if nothing happened.",
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+ psf->sf.samplerate, metadata->data.stream_info.sample_rate) ;
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+ } ;
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psf->sf.channels = metadata->data.stream_info.channels ;
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psf->sf.samplerate = metadata->data.stream_info.sample_rate ;
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psf->sf.frames = metadata->data.stream_info.total_samples ;
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diff --git a/src/sndfile.c b/src/sndfile.c
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index 41875610..e2a87be8 100644
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--- a/src/sndfile.c
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+++ b/src/sndfile.c
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@@ -245,6 +245,7 @@ ErrorStruct SndfileErrors [] =
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{ SFE_FLAC_INIT_DECODER , "Error : problem with initialization of the flac decoder." },
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{ SFE_FLAC_LOST_SYNC , "Error : flac decoder lost sync." },
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{ SFE_FLAC_BAD_SAMPLE_RATE, "Error : flac does not support this sample rate." },
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+ { SFE_FLAC_CHANNEL_COUNT_CHANGED, "Error : flac channel changed mid stream." },
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{ SFE_FLAC_UNKOWN_ERROR , "Error : unknown error in flac decoder." },
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{ SFE_WVE_NOT_WVE , "Error : not a WVE file." },
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--
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2.12.2
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@ -0,0 +1,61 @@
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Fix CVE-2017-8362:
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8362
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Patch copied from upstream source repository:
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https://github.com/erikd/libsndfile/commit/ef1dbb2df1c0e741486646de40bd638a9c4cd808
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From ef1dbb2df1c0e741486646de40bd638a9c4cd808 Mon Sep 17 00:00:00 2001
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From: Erik de Castro Lopo <erikd@mega-nerd.com>
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Date: Fri, 14 Apr 2017 15:19:16 +1000
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Subject: [PATCH] src/flac.c: Fix a buffer read overflow
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A file (generated by a fuzzer) which increased the number of channels
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from one frame to the next could cause a read beyond the end of the
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buffer provided by libFLAC. Only option is to abort the read.
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Closes: https://github.com/erikd/libsndfile/issues/231
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---
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src/flac.c | 11 +++++++++--
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1 file changed, 9 insertions(+), 2 deletions(-)
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diff --git a/src/flac.c b/src/flac.c
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index 5a4f8c21..e4f9aaa0 100644
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--- a/src/flac.c
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+++ b/src/flac.c
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@@ -169,6 +169,14 @@ flac_buffer_copy (SF_PRIVATE *psf)
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const int32_t* const *buffer = pflac->wbuffer ;
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unsigned i = 0, j, offset, channels, len ;
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+ if (psf->sf.channels != (int) frame->header.channels)
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+ { psf_log_printf (psf, "Error: FLAC frame changed from %d to %d channels\n"
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+ "Nothing to do but to error out.\n" ,
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+ psf->sf.channels, frame->header.channels) ;
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+ psf->error = SFE_FLAC_CHANNEL_COUNT_CHANGED ;
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+ return 0 ;
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+ } ;
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+
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/*
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** frame->header.blocksize is variable and we're using a constant blocksize
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** of FLAC__MAX_BLOCK_SIZE.
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@@ -202,7 +210,6 @@ flac_buffer_copy (SF_PRIVATE *psf)
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return 0 ;
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} ;
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-
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len = SF_MIN (pflac->len, frame->header.blocksize) ;
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if (pflac->remain % channels != 0)
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@@ -436,7 +443,7 @@ sf_flac_meta_callback (const FLAC__StreamDecoder * UNUSED (decoder), const FLAC_
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{ case FLAC__METADATA_TYPE_STREAMINFO :
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if (psf->sf.channels > 0 && psf->sf.channels != (int) metadata->data.stream_info.channels)
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{ psf_log_printf (psf, "Error: FLAC stream changed from %d to %d channels\n"
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- "Nothing to be but to error out.\n" ,
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+ "Nothing to do but to error out.\n" ,
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psf->sf.channels, metadata->data.stream_info.channels) ;
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psf->error = SFE_FLAC_CHANNEL_COUNT_CHANGED ;
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return ;
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--
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2.12.2
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@ -45,6 +45,7 @@
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(define-public libsndfile
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(package
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(name "libsndfile")
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(replacement libsndfile/fixed)
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(version "1.0.28")
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(source (origin
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(method url-fetch)
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@ -76,6 +77,18 @@ SPARC. Hopefully the design of the library will also make it easy to extend
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for reading and writing new sound file formats.")
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(license l:gpl2+)))
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(define libsndfile/fixed
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(package
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(inherit libsndfile)
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(source
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(origin
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(inherit (package-source libsndfile))
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(patches
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(append
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(origin-patches (package-source libsndfile))
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(search-patches "libsndfile-CVE-2017-8361-8363-8365.patch"
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"libsndfile-CVE-2017-8362.patch")))))))
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(define-public libsamplerate
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(package
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(name "libsamplerate") ; aka. Secret Rabbit Code (SRC)
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