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Update buildroot from 17.02.2 -> 17.02.3

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This commit is contained in:
jbnadal
2018-01-04 14:25:23 +01:00
parent 01d7c53e3e
commit d83c6ae740
285 changed files with 5286 additions and 876 deletions
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47
bsp/buildroot/package/tiff/0011-libtiff-tif_dirread.c-avoid-division-by-floating-poi.patch Normal file
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@@ -0,0 +1,47 @@
From 3cfd62d77c2a7e147a05bd678524c345fa9c2bb8 Mon Sep 17 00:00:00 2001
From: erouault <erouault>
Date: Wed, 11 Jan 2017 13:28:01 +0000
Subject: [PATCH] * libtiff/tif_dirread.c: avoid division by floating point 0
in TIFFReadDirEntryCheckedRational() and TIFFReadDirEntryCheckedSrational(),
and return 0 in that case (instead of infinity as before presumably)
Apparently some sanitizers do not like those divisions by zero. Fixes
http://bugzilla.maptools.org/show_bug.cgi?id=2644
Fixes CVE-2017-7598
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
libtiff/tif_dirread.c | 10 ++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c
index 570d0c32..8a1e42aa 100644
--- a/libtiff/tif_dirread.c
+++ b/libtiff/tif_dirread.c
@@ -2872,7 +2872,10 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFD
m.l = direntry->tdir_offset.toff_long8;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong(m.i,2);
- if (m.i[0]==0)
+ /* Not completely sure what we should do when m.i[1]==0, but some */
+ /* sanitizers do not like division by 0.0: */
+ /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */
+ if (m.i[0]==0 || m.i[1]==0)
*value=0.0;
else
*value=(double)m.i[0]/(double)m.i[1];
@@ -2900,7 +2903,10 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFF
m.l=direntry->tdir_offset.toff_long8;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong(m.i,2);
- if ((int32)m.i[0]==0)
+ /* Not completely sure what we should do when m.i[1]==0, but some */
+ /* sanitizers do not like division by 0.0: */
+ /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */
+ if ((int32)m.i[0]==0 || m.i[1]==0)
*value=0.0;
else
*value=(double)((int32)m.i[0])/(double)m.i[1];
--
2.11.0