libsndfile/SOURCES/libsndfile-1.0.29-cve2017_6892.patch
2021-09-09 20:59:12 +00:00

26 lines
868 B
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
---
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) ;