buildroot/package/libsndfile/0006-src-aiff.c-Fix-a-buffer-read-overflow.patch
Fabrice Fontaine 76d5ab4d17 package/libsndfile: add upstream security fixes
- Fix CVE-2017-6892: In libsndfile version 1.0.28, an error in the
  "aiff_read_chanmap()" function (aiff.c) can be exploited to cause an
  out-of-bounds read memory access via a specially crafted AIFF file.

- Fix CVE-2017-8361: The flac_buffer_copy function in flac.c in
  libsndfile 1.0.28 allows remote attackers to cause a denial of service
  (buffer overflow and application crash) or possibly have unspecified
  other impact via a crafted audio file.

- Fix CVE-2017-8362: The flac_buffer_copy function in flac.c in
  libsndfile 1.0.28 allows remote attackers to cause a denial of service
  (invalid read and application crash) via a crafted audio file.

- Fix CVE-2017-8363: The flac_buffer_copy function in flac.c in
  libsndfile 1.0.28 allows remote attackers to cause a denial of service
  (heap-based buffer over-read and application crash) via a crafted
  audio file.

- Fix CVE-2017-8365: The i2les_array function in pcm.c in
  libsndfile 1.0.28 allows remote attackers to cause a denial of service
  (buffer over-read and application crash) via a crafted audio file.

- Fix CVE-2017-12562: Heap-based Buffer Overflow in the
  psf_binheader_writef function in common.c in libsndfile through 1.0.28
  allows remote attackers to cause a denial of service (application
  crash) or possibly have unspecified other impact.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2020-04-02 21:50:19 +02:00

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Diff

From f833c53cb596e9e1792949f762e0b33661822748 Mon Sep 17 00:00:00 2001
From: Erik de Castro Lopo <erikd@mega-nerd.com>
Date: Tue, 23 May 2017 20:15:24 +1000
Subject: [PATCH] src/aiff.c: Fix a buffer read overflow
Secunia Advisory SA76717.
Found by: Laurent Delosieres, Secunia Research at Flexera Software
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Retrieved from:
https://github.com/erikd/libsndfile/commit/f833c53cb596e9e1792949f762e0b33661822748]
---
src/aiff.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/aiff.c b/src/aiff.c
index 5b5f9f53..45864b76 100644
--- a/src/aiff.c
+++ b/src/aiff.c
@@ -1759,7 +1759,7 @@ aiff_read_chanmap (SF_PRIVATE * psf, unsigned dword)
psf_binheader_readf (psf, "j", dword - bytesread) ;
if (map_info->channel_map != NULL)
- { size_t chanmap_size = psf->sf.channels * sizeof (psf->channel_map [0]) ;
+ { size_t chanmap_size = SF_MIN (psf->sf.channels, layout_tag & 0xffff) * sizeof (psf->channel_map [0]) ;
free (psf->channel_map) ;