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-rw-r--r--user/audiofile/CVE-2015-7747.patch156
1 files changed, 156 insertions, 0 deletions
diff --git a/user/audiofile/CVE-2015-7747.patch b/user/audiofile/CVE-2015-7747.patch
new file mode 100644
index 000000000..332563959
--- /dev/null
+++ b/user/audiofile/CVE-2015-7747.patch
@@ -0,0 +1,156 @@
+Description: fix buffer overflow when changing both sample format and
+ number of channels
+Origin: https://github.com/mpruett/audiofile/pull/25
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/audiofile/+bug/1502721
+Bug-Debian: https://bugs.debian.org/801102
+
+--- a/libaudiofile/modules/ModuleState.cpp
++++ b/libaudiofile/modules/ModuleState.cpp
+@@ -402,7 +402,7 @@ status ModuleState::arrange(AFfilehandle
+ addModule(new Transform(outfc, in.pcm, out.pcm));
+
+ if (in.channelCount != out.channelCount)
+- addModule(new ApplyChannelMatrix(infc, isReading,
++ addModule(new ApplyChannelMatrix(outfc, isReading,
+ in.channelCount, out.channelCount,
+ in.pcm.minClip, in.pcm.maxClip,
+ track->channelMatrix));
+--- a/test/Makefile.am
++++ b/test/Makefile.am
+@@ -26,6 +26,7 @@ TESTS = \
+ VirtualFile \
+ floatto24 \
+ query2 \
++ sixteen-stereo-to-eight-mono \
+ sixteen-to-eight \
+ testchannelmatrix \
+ testdouble \
+@@ -139,6 +140,7 @@ printmarkers_SOURCES = printmarkers.c
+ printmarkers_LDADD = $(LIBAUDIOFILE) -lm
+
+ sixteen_to_eight_SOURCES = sixteen-to-eight.c TestUtilities.cpp TestUtilities.h
++sixteen_stereo_to_eight_mono_SOURCES = sixteen-stereo-to-eight-mono.c TestUtilities.cpp TestUtilities.h
+
+ testchannelmatrix_SOURCES = testchannelmatrix.c TestUtilities.cpp TestUtilities.h
+
+--- /dev/null
++++ b/test/sixteen-stereo-to-eight-mono.c
+@@ -0,0 +1,118 @@
++/*
++ Audio File Library
++
++ Copyright 2000, Silicon Graphics, Inc.
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 2 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License along
++ with this program; if not, write to the Free Software Foundation, Inc.,
++ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
++*/
++
++/*
++ sixteen-stereo-to-eight-mono.c
++
++ This program tests the conversion from 2-channel 16-bit integers to
++ 1-channel 8-bit integers.
++*/
++
++#ifdef HAVE_CONFIG_H
++#include <config.h>
++#endif
++
++#include <stdint.h>
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#include <unistd.h>
++#include <limits.h>
++
++#include <audiofile.h>
++
++#include "TestUtilities.h"
++
++int main (int argc, char **argv)
++{
++ AFfilehandle file;
++ AFfilesetup setup;
++ int16_t frames16[] = {14298, 392, 3923, -683, 958, -1921};
++ int8_t frames8[] = {28, 6, -2};
++ int i, frameCount = 3;
++ int8_t byte;
++ AFframecount result;
++
++ setup = afNewFileSetup();
++
++ afInitFileFormat(setup, AF_FILE_WAVE);
++
++ afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 16);
++ afInitChannels(setup, AF_DEFAULT_TRACK, 2);
++
++ char *testFileName;
++ if (!createTemporaryFile("sixteen-to-eight", &testFileName))
++ {
++ fprintf(stderr, "Could not create temporary file.\n");
++ exit(EXIT_FAILURE);
++ }
++
++ file = afOpenFile(testFileName, "w", setup);
++ if (file == AF_NULL_FILEHANDLE)
++ {
++ fprintf(stderr, "could not open file for writing\n");
++ exit(EXIT_FAILURE);
++ }
++
++ afFreeFileSetup(setup);
++
++ afWriteFrames(file, AF_DEFAULT_TRACK, frames16, frameCount);
++
++ afCloseFile(file);
++
++ file = afOpenFile(testFileName, "r", AF_NULL_FILESETUP);
++ if (file == AF_NULL_FILEHANDLE)
++ {
++ fprintf(stderr, "could not open file for reading\n");
++ exit(EXIT_FAILURE);
++ }
++
++ afSetVirtualSampleFormat(file, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 8);
++ afSetVirtualChannels(file, AF_DEFAULT_TRACK, 1);
++
++ for (i=0; i<frameCount; i++)
++ {
++ /* Read one frame. */
++ result = afReadFrames(file, AF_DEFAULT_TRACK, &byte, 1);
++
++ if (result != 1)
++ break;
++
++ /* Compare the byte read with its precalculated value. */
++ if (memcmp(&byte, &frames8[i], 1) != 0)
++ {
++ printf("error\n");
++ printf("expected %d, got %d\n", frames8[i], byte);
++ exit(EXIT_FAILURE);
++ }
++ else
++ {
++#ifdef DEBUG
++ printf("got what was expected: %d\n", byte);
++#endif
++ }
++ }
++
++ afCloseFile(file);
++ unlink(testFileName);
++ free(testFileName);
++
++ exit(EXIT_SUCCESS);
++}