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commit 18bca4cf3057681689efb502175cbe5f01cb68c3
Author: erouault <erouault>
Date: Sat Dec 3 16:50:02 2016 +0000
* tools/tiffcp.c: replace assert( (bps % 8) == 0 ) by a non assert check.
Reported by Agostino Sarubbo.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2605
diff --git a/ChangeLog b/ChangeLog
index 8ee76c0..025eb72 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
2016-12-03 Even Rouault <even.rouault at spatialys.com>
+ * tools/tiffcp.c: replace assert( (bps % 8) == 0 ) by a non assert check.
+ Reported by Agostino Sarubbo.
+ Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2605
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
* tools/tiffcp.c: fix uint32 underflow/overflow that can cause heap-based
buffer overflow.
Reported by Agostino Sarubbo.
diff --git a/tools/tiffcp.c b/tools/tiffcp.c
index 6d96bb8..49c9d37 100644
--- a/tools/tiffcp.c
+++ b/tools/tiffcp.c
@@ -1,4 +1,4 @@
-/* $Id: tiffcp.c,v 1.59 2016-12-03 16:40:01 erouault Exp $ */
+/* $Id: tiffcp.c,v 1.60 2016-12-03 16:50:02 erouault Exp $ */
/*
* Copyright (c) 1988-1997 Sam Leffler
@@ -45,7 +45,6 @@
#include <string.h>
#include <ctype.h>
-#include <assert.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
@@ -1393,7 +1392,12 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)
status = 0;
goto done;
}
- assert( bps % 8 == 0 );
+ if( (bps % 8) != 0 )
+ {
+ TIFFError(TIFFFileName(in), "Error, cannot handle BitsPerSample that is not a multiple of 8");
+ status = 0;
+ goto done;
+ }
bytes_per_sample = bps/8;
for (row = 0; row < imagelength; row += tl) {
@@ -1584,7 +1588,12 @@ DECLAREwriteFunc(writeBufferToSeparateTiles)
_TIFFfree(obuf);
return 0;
}
- assert( bps % 8 == 0 );
+ if( (bps % 8) != 0 )
+ {
+ TIFFError(TIFFFileName(out), "Error, cannot handle BitsPerSample that is not a multiple of 8");
+ _TIFFfree(obuf);
+ return 0;
+ }
bytes_per_sample = bps/8;
for (row = 0; row < imagelength; row += tl) {
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