93 lines
3.1 KiB
Diff
93 lines
3.1 KiB
Diff
Fix CVE-2017-10688:
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http://bugzilla.maptools.org/show_bug.cgi?id=2712
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10688
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https://security-tracker.debian.org/tracker/CVE-2017-10688
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Patch lifted from upstream source repository (the changes to 'ChangeLog'
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don't apply to the libtiff 4.0.8 release tarball).
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3rd party Git reference:
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https://github.com/vadz/libtiff/commit/6173a57d39e04d68b139f8c1aa499a24dbe74ba1
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2017-06-30 Even Rouault <even.rouault at spatialys.com>
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* libtiff/tif_dirwrite.c: in TIFFWriteDirectoryTagCheckedXXXX()
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functions associated with LONG8/SLONG8 data type, replace assertion
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that
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the file is BigTIFF, by a non-fatal error.
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Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2712
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Reported by team OWL337
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/cvs/maptools/cvsroot/libtiff/ChangeLog,v <-- ChangeLog
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new revision: 1.1259; previous revision: 1.1258
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/cvs/maptools/cvsroot/libtiff/libtiff/tif_dirwrite.c,v <--
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libtiff/tif_dirwrite.c
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new revision: 1.86; previous revision: 1.85
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Index: libtiff/libtiff/tif_dirwrite.c
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===================================================================
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RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_dirwrite.c,v
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retrieving revision 1.85
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retrieving revision 1.86
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diff -u -r1.85 -r1.86
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--- libtiff/libtiff/tif_dirwrite.c 11 Jan 2017 16:09:02 -0000 1.85
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+++ libtiff/libtiff/tif_dirwrite.c 30 Jun 2017 17:29:44 -0000 1.86
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@@ -1,4 +1,4 @@
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-/* $Id: tif_dirwrite.c,v 1.85 2017-01-11 16:09:02 erouault Exp $ */
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+/* $Id: tif_dirwrite.c,v 1.86 2017-06-30 17:29:44 erouault Exp $ */
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/*
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* Copyright (c) 1988-1997 Sam Leffler
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@@ -2111,7 +2111,10 @@
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{
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uint64 m;
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assert(sizeof(uint64)==8);
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- assert(tif->tif_flags&TIFF_BIGTIFF);
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+ if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
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+ TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
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+ return(0);
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+ }
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m=value;
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if (tif->tif_flags&TIFF_SWAB)
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TIFFSwabLong8(&m);
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@@ -2124,7 +2127,10 @@
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{
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assert(count<0x20000000);
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assert(sizeof(uint64)==8);
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- assert(tif->tif_flags&TIFF_BIGTIFF);
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+ if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
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+ TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
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+ return(0);
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+ }
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if (tif->tif_flags&TIFF_SWAB)
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TIFFSwabArrayOfLong8(value,count);
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return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,count,count*8,value));
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@@ -2136,7 +2142,10 @@
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{
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int64 m;
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assert(sizeof(int64)==8);
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- assert(tif->tif_flags&TIFF_BIGTIFF);
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+ if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
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+ TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","SLONG8 not allowed for ClassicTIFF");
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+ return(0);
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+ }
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m=value;
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if (tif->tif_flags&TIFF_SWAB)
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TIFFSwabLong8((uint64*)(&m));
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@@ -2149,7 +2158,10 @@
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{
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assert(count<0x20000000);
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assert(sizeof(int64)==8);
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- assert(tif->tif_flags&TIFF_BIGTIFF);
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+ if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
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+ TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","SLONG8 not allowed for ClassicTIFF");
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+ return(0);
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+ }
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if (tif->tif_flags&TIFF_SWAB)
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TIFFSwabArrayOfLong8((uint64*)value,count);
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return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,count,count*8,value));
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