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audiofile: add security patch for CVE-2017-6827 / CVE-2017-6828 / CVE-2017-6832 / CVE-2017-6833 / CVE-2017-6835 / CVE-2017-6837

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CVE-2017-6827: A heap-based buffer overflow in the
MSADPCM::initializeCoefficients function in MSADPCM.cpp in audiofile (aka
libaudiofile and Audio File Library) 0.3.6 allows remote attackers to have
unspecified impact via a crafted audio file.

https://blogs.gentoo.org/ago/2017/02/20/audiofile-heap-based-buffer-overflow-in-msadpcminitializecoefficients-msadpcm-cpp
https://github.com/mpruett/audiofile/issues/32

CVE-2017-6828: A Heap-based buffer overflow in the readValue function in
FileHandle.cpp in audiofile (aka libaudiofile and Audio File Library) 0.3.6
allows remote attackers to have unspecified impact via a crafted WAV file.

https://blogs.gentoo.org/ago/2017/02/20/audiofile-heap-based-buffer-overflow-in-readvalue-filehandle-cpp
https://github.com/mpruett/audiofile/issues/31

CVE-2017-6832: A Heap-based buffer overflow in the decodeBlock in
MSADPCM.cpp in Audio File Library (aka audiofile) 0.3.6 allows remote
attackers to cause a denial of service (crash) via a crafted file.

https://blogs.gentoo.org/ago/2017/02/20/audiofile-heap-based-buffer-overflow-in-msadpcmdecodeblock-msadpcm-cpp
https://github.com/mpruett/audiofile/issues/36

CVE-2017-6833: The runPull function in libaudiofile/modules/BlockCodec.cpp
in Audio File Library (aka audiofile) 0.3.6 allows remote attackers to cause
a denial of service (divide-by-zero error and crash) via a crafted file.

https://blogs.gentoo.org/ago/2017/02/20/audiofile-divide-by-zero-in-blockcodecrunpull-blockcodec-cpp
https://github.com/mpruett/audiofile/issues/37

CVE-2017-6835: The reset1 function in libaudiofile/modules/BlockCodec.cpp in
Audio File Library (aka audiofile) 0.3.6 allows remote attackers to cause a
denial of service (divide-by-zero error and crash) via a crafted file.

https://blogs.gentoo.org/ago/2017/02/20/audiofile-divide-by-zero-in-blockcodecreset1-blockcodec-cpp
https://github.com/mpruett/audiofile/issues/39

CVE-2017-6837: WAVE.cpp in Audio File Library (aka audiofile) 0.3.6 allows
remote attackers to cause a denial of service (crash) via vectors related to
a large number of coefficients.

http://blogs.gentoo.org/ago/2017/02/20/audiofile-multiple-ubsan-crashes/
https://github.com/mpruett/audiofile/issues/41

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit cc00bde57f)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Peter Korsgaard 2017-03-30 23:03:31 +02:00
parent 9eb481bbfe
commit 4f533d049a
1 changed files with 36 additions and 0 deletions
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36
package/audiofile/0003-Always-check-the-number-of-coefficients.patch Normal file
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@ -0,0 +1,36 @@
From c48e4c6503f7dabd41f11d4c9c7b7f8960e7f2c0 Mon Sep 17 00:00:00 2001
From: Antonio Larrosa <larrosa@kde.org>
Date: Mon, 6 Mar 2017 12:51:22 +0100
Subject: [PATCH] Always check the number of coefficients
When building the library with NDEBUG, asserts are eliminated
so it's better to always check that the number of coefficients
is inside the array range.
This fixes the 00191-audiofile-indexoob issue in #41
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
libaudiofile/WAVE.cpp | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libaudiofile/WAVE.cpp b/libaudiofile/WAVE.cpp
index 0e81cf7..61f9541 100644
--- a/libaudiofile/WAVE.cpp
+++ b/libaudiofile/WAVE.cpp
@@ -281,6 +281,12 @@ status WAVEFile::parseFormat(const Tag &id, uint32_t size)
/* numCoefficients should be at least 7. */
assert(numCoefficients >= 7 && numCoefficients <= 255);
+ if (numCoefficients < 7 || numCoefficients > 255)
+ {
+ _af_error(AF_BAD_HEADER,
+ "Bad number of coefficients");
+ return AF_FAIL;
+ }
m_msadpcmNumCoefficients = numCoefficients;
--
2.11.0