From 1c4a500aae53b8cd33d1266eb3809b859ae2555d Mon Sep 17 00:00:00 2001 From: Leo Famulari Date: Mon, 1 May 2017 14:24:50 -0400 Subject: 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. --- .../libsndfile-CVE-2017-8361-8363-8365.patch | 77 ++++++++++++++++++++++ .../patches/libsndfile-CVE-2017-8362.patch | 61 +++++++++++++++++ gnu/packages/pulseaudio.scm | 13 ++++ 3 files changed, 151 insertions(+) create mode 100644 gnu/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch create mode 100644 gnu/packages/patches/libsndfile-CVE-2017-8362.patch (limited to 'gnu/packages') diff --git a/gnu/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch b/gnu/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch new file mode 100644 index 0000000000..5f63231af0 --- /dev/null +++ b/gnu/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch @@ -0,0 +1,77 @@ +Fix CVE-2017-{8361,8363,8365}: + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8361 +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8363 +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8365 + +Patch copied from upstream source repository: + +https://github.com/erikd/libsndfile/commit/fd0484aba8e51d16af1e3a880f9b8b857b385eb3 + +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 +--- + 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." }, +-- +2.12.2 + diff --git a/gnu/packages/patches/libsndfile-CVE-2017-8362.patch b/gnu/packages/patches/libsndfile-CVE-2017-8362.patch new file mode 100644 index 0000000000..5fc52a377a --- /dev/null +++ b/gnu/packages/patches/libsndfile-CVE-2017-8362.patch @@ -0,0 +1,61 @@ +Fix CVE-2017-8362: + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8362 + +Patch copied from upstream source repository: + +https://github.com/erikd/libsndfile/commit/ef1dbb2df1c0e741486646de40bd638a9c4cd808 + +From ef1dbb2df1c0e741486646de40bd638a9c4cd808 Mon Sep 17 00:00:00 2001 +From: Erik de Castro Lopo +Date: Fri, 14 Apr 2017 15:19:16 +1000 +Subject: [PATCH] src/flac.c: Fix a buffer read overflow + +A file (generated by a fuzzer) which increased the number of channels +from one frame to the next could cause a read beyond the end of the +buffer provided by libFLAC. Only option is to abort the read. + +Closes: https://github.com/erikd/libsndfile/issues/231 +--- + src/flac.c | 11 +++++++++-- + 1 file changed, 9 insertions(+), 2 deletions(-) + +diff --git a/src/flac.c b/src/flac.c +index 5a4f8c21..e4f9aaa0 100644 +--- a/src/flac.c ++++ b/src/flac.c +@@ -169,6 +169,14 @@ flac_buffer_copy (SF_PRIVATE *psf) + const int32_t* const *buffer = pflac->wbuffer ; + unsigned i = 0, j, offset, channels, len ; + ++ if (psf->sf.channels != (int) frame->header.channels) ++ { psf_log_printf (psf, "Error: FLAC frame changed from %d to %d channels\n" ++ "Nothing to do but to error out.\n" , ++ psf->sf.channels, frame->header.channels) ; ++ psf->error = SFE_FLAC_CHANNEL_COUNT_CHANGED ; ++ return 0 ; ++ } ; ++ + /* + ** frame->header.blocksize is variable and we're using a constant blocksize + ** of FLAC__MAX_BLOCK_SIZE. +@@ -202,7 +210,6 @@ flac_buffer_copy (SF_PRIVATE *psf) + return 0 ; + } ; + +- + len = SF_MIN (pflac->len, frame->header.blocksize) ; + + if (pflac->remain % channels != 0) +@@ -436,7 +443,7 @@ sf_flac_meta_callback (const FLAC__StreamDecoder * UNUSED (decoder), const FLAC_ + { 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" , ++ "Nothing to do but to error out.\n" , + psf->sf.channels, metadata->data.stream_info.channels) ; + psf->error = SFE_FLAC_CHANNEL_COUNT_CHANGED ; + return ; +-- +2.12.2 + diff --git a/gnu/packages/pulseaudio.scm b/gnu/packages/pulseaudio.scm index c52f265cc1..92ebe6f3eb 100644 --- a/gnu/packages/pulseaudio.scm +++ b/gnu/packages/pulseaudio.scm @@ -45,6 +45,7 @@ (define-module (gnu packages pulseaudio) (define-public libsndfile (package (name "libsndfile") + (replacement libsndfile/fixed) (version "1.0.28") (source (origin (method url-fetch) @@ -76,6 +77,18 @@ (define-public libsndfile for reading and writing new sound file formats.") (license l:gpl2+))) +(define libsndfile/fixed + (package + (inherit libsndfile) + (source + (origin + (inherit (package-source libsndfile)) + (patches + (append + (origin-patches (package-source libsndfile)) + (search-patches "libsndfile-CVE-2017-8361-8363-8365.patch" + "libsndfile-CVE-2017-8362.patch"))))))) + (define-public libsamplerate (package (name "libsamplerate") ; aka. Secret Rabbit Code (SRC) -- cgit v1.2.3