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void-packages/srcpkgs/tiff/patches/CVE-2017-10688.patch

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tiff: add patches for multiple CVEs patches taken from the inofficial git mirror of the upstream repository vadz/libtiff on github. Revisions: 4d4fa0b68ae9ae038959ee4f69ebe288ec892f06 fe8d7165956b88df4837034a9161dc5fd20cf67a 6173a57d39e04d68b139f8c1aa499a24dbe74ba1 Fixes CVE-2016-10095, CVE-2017-9147, CVE-2017-9936 and CVE-2017-9936. Closes: #6973 [via git-merge-pr]
2017-07-06 12:18:01 +02:00
diff --git a/libtiff/tif_dirwrite.c b/libtiff/tif_dirwrite.c
index 2967da58..8d6686ba 100644
--- libtiff/tif_dirwrite.c
+++ libtiff/tif_dirwrite.c
@@ -2111,7 +2111,10 @@ TIFFWriteDirectoryTagCheckedLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ui
{
uint64 m;
assert(sizeof(uint64)==8);
- assert(tif->tif_flags&TIFF_BIGTIFF);
+ if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
+ TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
+ return(0);
+ }
m=value;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8(&m);
@@ -2124,7 +2127,10 @@ TIFFWriteDirectoryTagCheckedLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* di
{
assert(count<0x20000000);
assert(sizeof(uint64)==8);
- assert(tif->tif_flags&TIFF_BIGTIFF);
+ if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
+ TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
+ return(0);
+ }
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong8(value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,count,count*8,value));
@@ -2136,7 +2142,10 @@ TIFFWriteDirectoryTagCheckedSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, u
{
int64 m;
assert(sizeof(int64)==8);
- assert(tif->tif_flags&TIFF_BIGTIFF);
+ if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
+ TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","SLONG8 not allowed for ClassicTIFF");
+ return(0);
+ }
m=value;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8((uint64*)(&m));
@@ -2149,7 +2158,10 @@ TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* d
{
assert(count<0x20000000);
assert(sizeof(int64)==8);
- assert(tif->tif_flags&TIFF_BIGTIFF);
+ if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
+ TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","SLONG8 not allowed for ClassicTIFF");
+ return(0);
+ }
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong8((uint64*)value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,count,count*8,value));