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-rw-r--r--meta/recipes-multimedia/libtiff/files/Fix_several_CVE_issues.patch281
-rw-r--r--meta/recipes-multimedia/libtiff/tiff_4.0.6.bb1
2 files changed, 282 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/libtiff/files/Fix_several_CVE_issues.patch b/meta/recipes-multimedia/libtiff/files/Fix_several_CVE_issues.patch
new file mode 100644
index 0000000000..bd587e6d07
--- /dev/null
+++ b/meta/recipes-multimedia/libtiff/files/Fix_several_CVE_issues.patch
@@ -0,0 +1,281 @@
1From 83a4b92815ea04969d494416eaae3d4c6b338e4a Mon Sep 17 00:00:00 2001
2From: erouault <erouault>
3Date: Fri, 23 Sep 2016 22:12:18 +0000
4Subject: [PATCH] Fix several CVE issues
5
6Fix CVE-2016-9533, CVE-2016-9534, CVE-2016-9536 and CVE-2016-9537
7
8* tools/tiffcrop.c: fix various out-of-bounds write
9 vulnerabilities in heap or stack allocated buffers. Reported as MSVR 35093,
10 MSVR 35096 and MSVR 35097. Discovered by Axel Souchet and Vishal Chauhan from
11 the MSRC Vulnerabilities & Mitigations team. * tools/tiff2pdf.c: fix
12 out-of-bounds write vulnerabilities in heap allocate buffer in
13 t2p_process_jpeg_strip(). Reported as MSVR 35098. Discovered by Axel Souchet
14 and Vishal Chauhan from the MSRC Vulnerabilities & Mitigations team. *
15 libtiff/tif_pixarlog.c: fix out-of-bounds write vulnerabilities in heap
16 allocated buffers. Reported as MSVR 35094. Discovered by Axel Souchet and
17 Vishal Chauhan from the MSRC Vulnerabilities & Mitigations team. *
18 libtiff/tif_write.c: fix issue in error code path of TIFFFlushData1() that
19 didn't reset the tif_rawcc and tif_rawcp members. I'm not completely sure if
20 that could happen in practice outside of the odd behaviour of t2p_seekproc()
21 of tiff2pdf). The report points that a better fix could be to check the
22 return value of TIFFFlushData1() in places where it isn't done currently, but
23 it seems this patch is enough. Reported as MSVR 35095. Discovered by Axel
24 Souchet & Vishal Chauhan & Suha Can from the MSRC Vulnerabilities &
25 Mitigations team.
26
27CVE: CVE-2016-9533, CVE-2016-9534, CVE-2016-9536, CVE-2016-9537
28Upstream-Status: Backport
29https://github.com/vadz/libtiff/commit/83a4b92815ea04969d494416eaae3d4c6b338e4a#diff-bdc795f6afeb9558c1012b3cfae729ef
30
31Signed-off-by: Mingli Yu <Mingli.Yu@windriver.com>
32
33---
34 libtiff/tif_pixarlog.c | 55 +++++++++++++++++++++-----------------------------
35 libtiff/tif_write.c | 7 +++++++
36 tools/tiff2pdf.c | 22 ++++++++++++++++++--
37 tools/tiffcrop.c | 20 +++++++++++++++++-
38 4 files changed, 92 insertions(+), 35 deletions(-)
39
40diff --git a/libtiff/tif_pixarlog.c b/libtiff/tif_pixarlog.c
41index 1fb8f3b..d1246c3 100644
42--- a/libtiff/tif_pixarlog.c
43+++ b/libtiff/tif_pixarlog.c
44@@ -983,17 +983,14 @@ horizontalDifferenceF(float *ip, int n, int stride, uint16 *wp, uint16 *FromLT2)
45 a1 = (int32) CLAMP(ip[3]); wp[3] = (uint16)((a1-a2) & mask); a2 = a1;
46 }
47 } else {
48- ip += n - 1; /* point to last one */
49- wp += n - 1; /* point to last one */
50- n -= stride;
51- while (n > 0) {
52- REPEAT(stride, wp[0] = (uint16) CLAMP(ip[0]);
53- wp[stride] -= wp[0];
54- wp[stride] &= mask;
55- wp--; ip--)
56- n -= stride;
57- }
58- REPEAT(stride, wp[0] = (uint16) CLAMP(ip[0]); wp--; ip--)
59+ REPEAT(stride, wp[0] = (uint16) CLAMP(ip[0]); wp++; ip++)
60+ n -= stride;
61+ while (n > 0) {
62+ REPEAT(stride,
63+ wp[0] = (uint16)(((int32)CLAMP(ip[0])-(int32)CLAMP(ip[-stride])) & mask);
64+ wp++; ip++)
65+ n -= stride;
66+ }
67 }
68 }
69 }
70@@ -1036,17 +1033,14 @@ horizontalDifference16(unsigned short *ip, int n, int stride,
71 a1 = CLAMP(ip[3]); wp[3] = (uint16)((a1-a2) & mask); a2 = a1;
72 }
73 } else {
74- ip += n - 1; /* point to last one */
75- wp += n - 1; /* point to last one */
76+ REPEAT(stride, wp[0] = CLAMP(ip[0]); wp++; ip++)
77 n -= stride;
78 while (n > 0) {
79- REPEAT(stride, wp[0] = CLAMP(ip[0]);
80- wp[stride] -= wp[0];
81- wp[stride] &= mask;
82- wp--; ip--)
83- n -= stride;
84- }
85- REPEAT(stride, wp[0] = CLAMP(ip[0]); wp--; ip--)
86+ REPEAT(stride,
87+ wp[0] = (uint16)((CLAMP(ip[0])-CLAMP(ip[-stride])) & mask);
88+ wp++; ip++)
89+ n -= stride;
90+ }
91 }
92 }
93 }
94@@ -1089,18 +1083,15 @@ horizontalDifference8(unsigned char *ip, int n, int stride,
95 ip += 4;
96 }
97 } else {
98- wp += n + stride - 1; /* point to last one */
99- ip += n + stride - 1; /* point to last one */
100- n -= stride;
101- while (n > 0) {
102- REPEAT(stride, wp[0] = CLAMP(ip[0]);
103- wp[stride] -= wp[0];
104- wp[stride] &= mask;
105- wp--; ip--)
106- n -= stride;
107- }
108- REPEAT(stride, wp[0] = CLAMP(ip[0]); wp--; ip--)
109- }
110+ REPEAT(stride, wp[0] = CLAMP(ip[0]); wp++; ip++)
111+ n -= stride;
112+ while (n > 0) {
113+ REPEAT(stride,
114+ wp[0] = (uint16)((CLAMP(ip[0])-CLAMP(ip[-stride])) & mask);
115+ wp++; ip++)
116+ n -= stride;
117+ }
118+ }
119 }
120 }
121
122diff --git a/libtiff/tif_write.c b/libtiff/tif_write.c
123index f9a3fc0..d8fa802 100644
124--- a/libtiff/tif_write.c
125+++ b/libtiff/tif_write.c
126@@ -798,7 +798,14 @@ TIFFFlushData1(TIFF* tif)
127 if (!TIFFAppendToStrip(tif,
128 isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip,
129 tif->tif_rawdata, tif->tif_rawcc))
130+ {
131+ /* We update those variables even in case of error since there's */
132+ /* code that doesn't really check the return code of this */
133+ /* function */
134+ tif->tif_rawcc = 0;
135+ tif->tif_rawcp = tif->tif_rawdata;
136 return (0);
137+ }
138 tif->tif_rawcc = 0;
139 tif->tif_rawcp = tif->tif_rawdata;
140 }
141diff --git a/tools/tiff2pdf.c b/tools/tiff2pdf.c
142index dcd5a7e..f8df6b5 100644
143--- a/tools/tiff2pdf.c
144+++ b/tools/tiff2pdf.c
145@@ -286,7 +286,7 @@ tsize_t t2p_readwrite_pdf_image_tile(T2P*, TIFF*, TIFF*, ttile_t);
146 int t2p_process_ojpeg_tables(T2P*, TIFF*);
147 #endif
148 #ifdef JPEG_SUPPORT
149-int t2p_process_jpeg_strip(unsigned char*, tsize_t*, unsigned char*, tsize_t*, tstrip_t, uint32);
150+int t2p_process_jpeg_strip(unsigned char*, tsize_t*, unsigned char*, tsize_t, tsize_t*, tstrip_t, uint32);
151 #endif
152 void t2p_tile_collapse_left(tdata_t, tsize_t, uint32, uint32, uint32);
153 void t2p_write_advance_directory(T2P*, TIFF*);
154@@ -2408,7 +2408,8 @@ tsize_t t2p_readwrite_pdf_image(T2P* t2p, TIFF* input, TIFF* output){
155 if(!t2p_process_jpeg_strip(
156 stripbuffer,
157 &striplength,
158- buffer,
159+ buffer,
160+ t2p->tiff_datasize,
161 &bufferoffset,
162 i,
163 t2p->tiff_length)){
164@@ -3439,6 +3440,7 @@ int t2p_process_jpeg_strip(
165 unsigned char* strip,
166 tsize_t* striplength,
167 unsigned char* buffer,
168+ tsize_t buffersize,
169 tsize_t* bufferoffset,
170 tstrip_t no,
171 uint32 height){
172@@ -3473,6 +3475,8 @@ int t2p_process_jpeg_strip(
173 }
174 switch( strip[i] ){
175 case 0xd8: /* SOI - start of image */
176+ if( *bufferoffset + 2 > buffersize )
177+ return(0);
178 _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), 2);
179 *bufferoffset+=2;
180 break;
181@@ -3482,12 +3486,18 @@ int t2p_process_jpeg_strip(
182 case 0xc9: /* SOF9 */
183 case 0xca: /* SOF10 */
184 if(no==0){
185+ if( *bufferoffset + datalen + 2 + 6 > buffersize )
186+ return(0);
187 _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
188+ if( *bufferoffset + 9 >= buffersize )
189+ return(0);
190 ncomp = buffer[*bufferoffset+9];
191 if (ncomp < 1 || ncomp > 4)
192 return(0);
193 v_samp=1;
194 h_samp=1;
195+ if( *bufferoffset + 11 + 3*(ncomp-1) >= buffersize )
196+ return(0);
197 for(j=0;j<ncomp;j++){
198 uint16 samp = buffer[*bufferoffset+11+(3*j)];
199 if( (samp>>4) > h_samp)
200@@ -3519,20 +3529,28 @@ int t2p_process_jpeg_strip(
201 break;
202 case 0xc4: /* DHT */
203 case 0xdb: /* DQT */
204+ if( *bufferoffset + datalen + 2 > buffersize )
205+ return(0);
206 _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
207 *bufferoffset+=datalen+2;
208 break;
209 case 0xda: /* SOS */
210 if(no==0){
211+ if( *bufferoffset + datalen + 2 > buffersize )
212+ return(0);
213 _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
214 *bufferoffset+=datalen+2;
215 } else {
216+ if( *bufferoffset + 2 > buffersize )
217+ return(0);
218 buffer[(*bufferoffset)++]=0xff;
219 buffer[(*bufferoffset)++]=
220 (unsigned char)(0xd0 | ((no-1)%8));
221 }
222 i += datalen + 1;
223 /* copy remainder of strip */
224+ if( *bufferoffset + *striplength - i > buffersize )
225+ return(0);
226 _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i]), *striplength - i);
227 *bufferoffset+= *striplength - i;
228 return(1);
229diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
230index ebc4aba..7685566 100644
231--- a/tools/tiffcrop.c
232+++ b/tools/tiffcrop.c
233@@ -5758,7 +5758,8 @@ loadImage(TIFF* in, struct image_data *image, struct dump_opts *dump, unsigned c
234 {
235 uint32 i;
236 float xres = 0.0, yres = 0.0;
237- uint16 nstrips = 0, ntiles = 0, planar = 0;
238+ uint32 nstrips = 0, ntiles = 0;
239+ uint16 planar = 0;
240 uint16 bps = 0, spp = 0, res_unit = 0;
241 uint16 orientation = 0;
242 uint16 input_compression = 0, input_photometric = 0;
243@@ -6066,11 +6067,23 @@ loadImage(TIFF* in, struct image_data *image, struct dump_opts *dump, unsigned c
244 /* +3 : add a few guard bytes since reverseSamples16bits() can read a bit */
245 /* outside buffer */
246 if (!read_buff)
247+ {
248+ if( buffsize > 0xFFFFFFFFU - 3 )
249+ {
250+ TIFFError("loadImage", "Unable to allocate/reallocate read buffer");
251+ return (-1);
252+ }
253 read_buff = (unsigned char *)_TIFFmalloc(buffsize+3);
254+ }
255 else
256 {
257 if (prev_readsize < buffsize)
258+ {
259+ if( buffsize > 0xFFFFFFFFU - 3 )
260 {
261+ TIFFError("loadImage", "Unable to allocate/reallocate read buffer");
262+ return (-1);
263+ }
264 new_buff = _TIFFrealloc(read_buff, buffsize+3);
265 if (!new_buff)
266 {
267@@ -8912,6 +8925,11 @@ reverseSamplesBytes (uint16 spp, uint16 bps, uint32 width,
268 }
269
270 bytes_per_pixel = ((bps * spp) + 7) / 8;
271+ if( bytes_per_pixel > sizeof(swapbuff) )
272+ {
273+ TIFFError("reverseSamplesBytes","bytes_per_pixel too large");
274+ return (1);
275+ }
276 switch (bps / 8)
277 {
278 case 8: /* Use memcpy for multiple bytes per sample data */
279--
2802.9.3
281
diff --git a/meta/recipes-multimedia/libtiff/tiff_4.0.6.bb b/meta/recipes-multimedia/libtiff/tiff_4.0.6.bb
index e0f91b8390..450927d93c 100644
--- a/meta/recipes-multimedia/libtiff/tiff_4.0.6.bb
+++ b/meta/recipes-multimedia/libtiff/tiff_4.0.6.bb
@@ -24,6 +24,7 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \
24 file://CVE-2016-9535-1.patch \ 24 file://CVE-2016-9535-1.patch \
25 file://CVE-2016-9535-2.patch \ 25 file://CVE-2016-9535-2.patch \
26 file://CVE-2016-9538.patch \ 26 file://CVE-2016-9538.patch \
27 file://Fix_several_CVE_issues.patch \
27 " 28 "
28 29
29SRC_URI[md5sum] = "d1d2e940dea0b5ad435f21f03d96dd72" 30SRC_URI[md5sum] = "d1d2e940dea0b5ad435f21f03d96dd72"
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