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tiff: fix CVE-2019-14973

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CVE reference: https://nvd.nist.gov/vuln/detail/CVE-2019-14973
Upstream merge: https://gitlab.com/libtiff/libtiff/commit/2218055c

(From OE-Core rev: cf26271c34fcbd76f90831955040020c3ee91b6b)

Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
[fixup for Warrior context]
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Trevor Gamblin
2019-09-20 14:25:11 -04:00
committed by Richard Purdie
parent bacc8e1617
commit ee860651e9
2 changed files with 417 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

415
meta/recipes-multimedia/libtiff/tiff/CVE-2019-14973.patch Normal file
View File

@@ -0,0 +1,415 @@
From 95ac1e3fcc6b643b5bd100f2ea54faca0a003315 Mon Sep 17 00:00:00 2001
From: Trevor Gamblin <trevor.gamblin@windriver.com>
Date: Fri, 20 Sep 2019 09:33:22 -0400
Subject: [PATCH] libtiff-fix-CVE-2019-14973
Upstream-Status: Backport [https://gitlab.com/libtiff/libtiff/commit/2218055ca67d84be596a13080e8f50f22116555c]
CVE: CVE-2019-14973
Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>
---
libtiff/tif_aux.c | 49 +++++++++++++++++++++++++++++++++++++-----
libtiff/tif_getimage.c | 6 ++----
libtiff/tif_luv.c | 8 +------
libtiff/tif_pixarlog.c | 7 +-----
libtiff/tif_read.c | 38 +++++++++-----------------------
libtiff/tif_strip.c | 35 ++++--------------------------
libtiff/tif_tile.c | 27 +++--------------------
libtiff/tiffiop.h | 7 +++++-
8 files changed, 71 insertions(+), 106 deletions(-)
diff --git a/libtiff/tif_aux.c b/libtiff/tif_aux.c
index 4ece162f..33fb8a44 100644
--- a/libtiff/tif_aux.c
+++ b/libtiff/tif_aux.c
@@ -57,18 +57,57 @@ _TIFFMultiply64(TIFF* tif, uint64 first, uint64 second, const char* where)
return bytes;
}
+tmsize_t
+_TIFFMultiplySSize(TIFF* tif, tmsize_t first, tmsize_t second, const char* where)
+{
+ if( first <= 0 || second <= 0 )
+ {
+ if( tif != NULL && where != NULL )
+ {
+ TIFFErrorExt(tif->tif_clientdata, where,
+ "Invalid argument to _TIFFMultiplySSize() in %s", where);
+ }
+ return 0;
+ }
+
+ if( first > TIFF_TMSIZE_T_MAX / second )
+ {
+ if( tif != NULL && where != NULL )
+ {
+ TIFFErrorExt(tif->tif_clientdata, where,
+ "Integer overflow in %s", where);
+ }
+ return 0;
+ }
+ return first * second;
+}
+
+tmsize_t _TIFFCastUInt64ToSSize(TIFF* tif, uint64 val, const char* module)
+{
+ if( val > (uint64)TIFF_TMSIZE_T_MAX )
+ {
+ if( tif != NULL && module != NULL )
+ {
+ TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
+ }
+ return 0;
+ }
+ return (tmsize_t)val;
+}
+
void*
_TIFFCheckRealloc(TIFF* tif, void* buffer,
tmsize_t nmemb, tmsize_t elem_size, const char* what)
{
void* cp = NULL;
- tmsize_t bytes = nmemb * elem_size;
-
+ tmsize_t count = _TIFFMultiplySSize(tif, nmemb, elem_size, NULL);
/*
- * XXX: Check for integer overflow.
+ * Check for integer overflow.
*/
- if (nmemb && elem_size && bytes / elem_size == nmemb)
- cp = _TIFFrealloc(buffer, bytes);
+ if (count != 0)
+ {
+ cp = _TIFFrealloc(buffer, count);
+ }
if (cp == NULL) {
TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
index 6a9d5a7c..2106ca21 100644
--- a/libtiff/tif_getimage.c
+++ b/libtiff/tif_getimage.c
@@ -755,9 +755,8 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
uint32 leftmost_tw;
tilesize = TIFFTileSize(tif);
- bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,tilesize);
+ bufsize = _TIFFMultiplySSize(tif, alpha?4:3,tilesize, "gtTileSeparate");
if (bufsize == 0) {
- TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtTileSeparate");
return (0);
}
@@ -1019,9 +1018,8 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
uint16 colorchannels;
stripsize = TIFFStripSize(tif);
- bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,stripsize);
+ bufsize = _TIFFMultiplySSize(tif,alpha?4:3,stripsize, "gtStripSeparate");
if (bufsize == 0) {
- TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtStripSeparate");
return (0);
}
diff --git a/libtiff/tif_luv.c b/libtiff/tif_luv.c
index aa35ea07..46d2dff2 100644
--- a/libtiff/tif_luv.c
+++ b/libtiff/tif_luv.c
@@ -1264,16 +1264,10 @@ LogL16GuessDataFmt(TIFFDirectory *td)
return (SGILOGDATAFMT_UNKNOWN);
}
-
-#define TIFF_SIZE_T_MAX ((size_t) ~ ((size_t)0))
-#define TIFF_TMSIZE_T_MAX (tmsize_t)(TIFF_SIZE_T_MAX >> 1)
-
static tmsize_t
multiply_ms(tmsize_t m1, tmsize_t m2)
{
- if( m1 == 0 || m2 > TIFF_TMSIZE_T_MAX / m1 )
- return 0;
- return m1 * m2;
+ return _TIFFMultiplySSize(NULL, m1, m2, NULL);
}
static int
diff --git a/libtiff/tif_pixarlog.c b/libtiff/tif_pixarlog.c
index 7438d692..b52a3ee4 100644
--- a/libtiff/tif_pixarlog.c
+++ b/libtiff/tif_pixarlog.c
@@ -634,15 +634,10 @@ PixarLogGuessDataFmt(TIFFDirectory *td)
return guess;
}
-#define TIFF_SIZE_T_MAX ((size_t) ~ ((size_t)0))
-#define TIFF_TMSIZE_T_MAX (tmsize_t)(TIFF_SIZE_T_MAX >> 1)
-
static tmsize_t
multiply_ms(tmsize_t m1, tmsize_t m2)
{
- if( m1 == 0 || m2 > TIFF_TMSIZE_T_MAX / m1 )
- return 0;
- return m1 * m2;
+ return _TIFFMultiplySSize(NULL, m1, m2, NULL);
}
static tmsize_t
diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
index e63810cc..8db39d7a 100644
--- a/libtiff/tif_read.c
+++ b/libtiff/tif_read.c
@@ -29,9 +29,6 @@
#include "tiffiop.h"
#include <stdio.h>
-#define TIFF_SIZE_T_MAX ((size_t) ~ ((size_t)0))
-#define TIFF_TMSIZE_T_MAX (tmsize_t)(TIFF_SIZE_T_MAX >> 1)
-
int TIFFFillStrip(TIFF* tif, uint32 strip);
int TIFFFillTile(TIFF* tif, uint32 tile);
static int TIFFStartStrip(TIFF* tif, uint32 strip);
@@ -49,6 +46,8 @@ TIFFReadRawTile1(TIFF* tif, uint32 tile, void* buf, tmsize_t size, const char* m
#define THRESHOLD_MULTIPLIER 10
#define MAX_THRESHOLD (THRESHOLD_MULTIPLIER * THRESHOLD_MULTIPLIER * THRESHOLD_MULTIPLIER * INITIAL_THRESHOLD)
+#define TIFF_INT64_MAX ((((int64)0x7FFFFFFF) << 32) | 0xFFFFFFFF)
+
/* Read 'size' bytes in tif_rawdata buffer starting at offset 'rawdata_offset'
* Returns 1 in case of success, 0 otherwise. */
static int TIFFReadAndRealloc( TIFF* tif, tmsize_t size,
@@ -734,23 +733,8 @@ TIFFReadRawStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
return ((tmsize_t)(-1));
}
bytecount = td->td_stripbytecount[strip];
- if ((int64)bytecount <= 0) {
-#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
- TIFFErrorExt(tif->tif_clientdata, module,
- "%I64u: Invalid strip byte count, strip %lu",
- (unsigned __int64) bytecount,
- (unsigned long) strip);
-#else
- TIFFErrorExt(tif->tif_clientdata, module,
- "%llu: Invalid strip byte count, strip %lu",
- (unsigned long long) bytecount,
- (unsigned long) strip);
-#endif
- return ((tmsize_t)(-1));
- }
- bytecountm = (tmsize_t)bytecount;
- if ((uint64)bytecountm!=bytecount) {
- TIFFErrorExt(tif->tif_clientdata, module, "Integer overflow");
+ bytecountm = _TIFFCastUInt64ToSSize(tif, bytecount, module);
+ if (bytecountm == 0) {
return ((tmsize_t)(-1));
}
if (size != (tmsize_t)(-1) && size < bytecountm)
@@ -774,7 +758,7 @@ TIFFFillStrip(TIFF* tif, uint32 strip)
if ((tif->tif_flags&TIFF_NOREADRAW)==0)
{
uint64 bytecount = td->td_stripbytecount[strip];
- if ((int64)bytecount <= 0) {
+ if( bytecount == 0 || bytecount > (uint64)TIFF_INT64_MAX ) {
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFErrorExt(tif->tif_clientdata, module,
"Invalid strip byte count %I64u, strip %lu",
@@ -801,7 +785,7 @@ TIFFFillStrip(TIFF* tif, uint32 strip)
(bytecount - 4096) / 10 > (uint64)stripsize )
{
uint64 newbytecount = (uint64)stripsize * 10 + 4096;
- if( (int64)newbytecount >= 0 )
+ if( newbytecount == 0 || newbytecount > (uint64)TIFF_INT64_MAX )
{
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFWarningExt(tif->tif_clientdata, module,
@@ -1196,10 +1180,8 @@ TIFFReadRawTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size)
bytecount64 = td->td_stripbytecount[tile];
if (size != (tmsize_t)(-1) && (uint64)size < bytecount64)
bytecount64 = (uint64)size;
- bytecountm = (tmsize_t)bytecount64;
- if ((uint64)bytecountm!=bytecount64)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
+ bytecountm = _TIFFCastUInt64ToSSize(tif, bytecount64, module);
+ if( bytecountm == 0 ) {
return ((tmsize_t)(-1));
}
return (TIFFReadRawTile1(tif, tile, buf, bytecountm, module));
@@ -1221,7 +1203,7 @@ TIFFFillTile(TIFF* tif, uint32 tile)
if ((tif->tif_flags&TIFF_NOREADRAW)==0)
{
uint64 bytecount = td->td_stripbytecount[tile];
- if ((int64)bytecount <= 0) {
+ if( bytecount == 0 || bytecount > (uint64)TIFF_INT64_MAX ) {
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFErrorExt(tif->tif_clientdata, module,
"%I64u: Invalid tile byte count, tile %lu",
@@ -1248,7 +1230,7 @@ TIFFFillTile(TIFF* tif, uint32 tile)
(bytecount - 4096) / 10 > (uint64)stripsize )
{
uint64 newbytecount = (uint64)stripsize * 10 + 4096;
- if( (int64)newbytecount >= 0 )
+ if( newbytecount == 0 || newbytecount > (uint64)TIFF_INT64_MAX )
{
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFWarningExt(tif->tif_clientdata, module,
diff --git a/libtiff/tif_strip.c b/libtiff/tif_strip.c
index 5b76fba5..2366acf0 100644
--- a/libtiff/tif_strip.c
+++ b/libtiff/tif_strip.c
@@ -129,15 +129,8 @@ TIFFVStripSize(TIFF* tif, uint32 nrows)
{
static const char module[] = "TIFFVStripSize";
uint64 m;
- tmsize_t n;
m=TIFFVStripSize64(tif,nrows);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
- n=0;
- }
- return(n);
+ return _TIFFCastUInt64ToSSize(tif, m, module);
}
/*
@@ -211,15 +204,8 @@ TIFFStripSize(TIFF* tif)
{
static const char module[] = "TIFFStripSize";
uint64 m;
- tmsize_t n;
m=TIFFStripSize64(tif);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
- n=0;
- }
- return(n);
+ return _TIFFCastUInt64ToSSize(tif, m, module);
}
/*
@@ -330,14 +316,8 @@ TIFFScanlineSize(TIFF* tif)
{
static const char module[] = "TIFFScanlineSize";
uint64 m;
- tmsize_t n;
m=TIFFScanlineSize64(tif);
- n=(tmsize_t)m;
- if ((uint64)n!=m) {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer arithmetic overflow");
- n=0;
- }
- return(n);
+ return _TIFFCastUInt64ToSSize(tif, m, module);
}
/*
@@ -366,15 +346,8 @@ TIFFRasterScanlineSize(TIFF* tif)
{
static const char module[] = "TIFFRasterScanlineSize";
uint64 m;
- tmsize_t n;
m=TIFFRasterScanlineSize64(tif);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer arithmetic overflow");
- n=0;
- }
- return(n);
+ return _TIFFCastUInt64ToSSize(tif, m, module);
}
/* vim: set ts=8 sts=8 sw=8 noet: */
diff --git a/libtiff/tif_tile.c b/libtiff/tif_tile.c
index 58fe9354..661cc771 100644
--- a/libtiff/tif_tile.c
+++ b/libtiff/tif_tile.c
@@ -181,15 +181,8 @@ TIFFTileRowSize(TIFF* tif)
{
static const char module[] = "TIFFTileRowSize";
uint64 m;
- tmsize_t n;
m=TIFFTileRowSize64(tif);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
- n=0;
- }
- return(n);
+ return _TIFFCastUInt64ToSSize(tif, m, module);
}
/*
@@ -248,15 +241,8 @@ TIFFVTileSize(TIFF* tif, uint32 nrows)
{
static const char module[] = "TIFFVTileSize";
uint64 m;
- tmsize_t n;
m=TIFFVTileSize64(tif,nrows);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
- n=0;
- }
- return(n);
+ return _TIFFCastUInt64ToSSize(tif, m, module);
}
/*
@@ -272,15 +258,8 @@ TIFFTileSize(TIFF* tif)
{
static const char module[] = "TIFFTileSize";
uint64 m;
- tmsize_t n;
m=TIFFTileSize64(tif);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
- n=0;
- }
- return(n);
+ return _TIFFCastUInt64ToSSize(tif, m, module);
}
/*
diff --git a/libtiff/tiffiop.h b/libtiff/tiffiop.h
index 186c291f..558484fe 100644
--- a/libtiff/tiffiop.h
+++ b/libtiff/tiffiop.h
@@ -77,6 +77,9 @@ extern int snprintf(char* str, size_t size, const char* format, ...);
#define FALSE 0
#endif
+#define TIFF_SIZE_T_MAX ((size_t) ~ ((size_t)0))
+#define TIFF_TMSIZE_T_MAX (tmsize_t)(TIFF_SIZE_T_MAX >> 1)
+
typedef struct client_info {
struct client_info *next;
void *data;
@@ -258,7 +261,7 @@ struct tiff {
#define TIFFhowmany8_64(x) (((x)&0x07)?((uint64)(x)>>3)+1:(uint64)(x)>>3)
#define TIFFroundup_64(x, y) (TIFFhowmany_64(x,y)*(y))
-/* Safe multiply which returns zero if there is an integer overflow */
+/* Safe multiply which returns zero if there is an *unsigned* integer overflow. This macro is not safe for *signed* integer types */
#define TIFFSafeMultiply(t,v,m) ((((t)(m) != (t)0) && (((t)(((v)*(m))/(m))) == (t)(v))) ? (t)((v)*(m)) : (t)0)
#define TIFFmax(A,B) ((A)>(B)?(A):(B))
@@ -368,6 +371,8 @@ extern TIFFErrorHandlerExt _TIFFerrorHandlerExt;
extern uint32 _TIFFMultiply32(TIFF*, uint32, uint32, const char*);
extern uint64 _TIFFMultiply64(TIFF*, uint64, uint64, const char*);
+extern tmsize_t _TIFFMultiplySSize(TIFF*, tmsize_t, tmsize_t, const char*);
+extern tmsize_t _TIFFCastUInt64ToSSize(TIFF*, uint64, const char*);
extern void* _TIFFCheckMalloc(TIFF*, tmsize_t, tmsize_t, const char*);
extern void* _TIFFCheckRealloc(TIFF*, void*, tmsize_t, tmsize_t, const char*);
--
2.17.1

3
meta/recipes-multimedia/libtiff/tiff_4.0.10.bb
View File

@@ -8,7 +8,8 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \
file://libtool2.patch \
file://CVE-2019-6128.patch \
file://CVE-2019-7663.patch \
"
file://CVE-2019-14973.patch \
"
SRC_URI[md5sum] = "114192d7ebe537912a2b97408832e7fd"
SRC_URI[sha256sum] = "2c52d11ccaf767457db0c46795d9c7d1a8d8f76f68b0b800a3dfe45786b996e4"