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 2017-05-01 14:24:50 -04:00
parent d5b091290d
commit 1c4a500aae
No known key found for this signature in database
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4 changed files with 153 additions and 0 deletions

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@ -719,6 +719,8 @@ dist_patch_DATA = \
%D%/packages/patches/libmad-frame-length.patch \
%D%/packages/patches/libmad-mips-newgcc.patch \
%D%/packages/patches/libsndfile-armhf-type-checks.patch \
%D%/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch \
%D%/packages/patches/libsndfile-CVE-2017-8362.patch \
%D%/packages/patches/libssh2-fix-build-failure-with-gcrypt.patch \
%D%/packages/patches/libtar-CVE-2013-4420.patch \
%D%/packages/patches/libtheora-config-guess.patch \

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@ -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 <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." },
--
2.12.2

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@ -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 <erikd@mega-nerd.com>
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

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@ -45,6 +45,7 @@
(define-public libsndfile
(package
(name "libsndfile")
(replacement libsndfile/fixed)
(version "1.0.28")
(source (origin
(method url-fetch)
@ -76,6 +77,18 @@ SPARC. Hopefully the design of the library will also make it easy to extend
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)