File tiff-CVE-2023-0795,CVE-2023-0796,CVE-2023-0797,CVE-2023-0798,CVE-2023-0799.patch of Package tiff.29109
Based on upstream commits:
9c22495e5eeeae9e00a1596720c969656bb8d678
688012dca2c39033aa2dc7bcea9796787cfd1b44
69818e2f2d246e6631ac2a2da692c3706b849c38
Index: tiff-4.0.9/tools/tiffcrop.c
===================================================================
--- tiff-4.0.9.orig/tools/tiffcrop.c
+++ tiff-4.0.9/tools/tiffcrop.c
@@ -278,7 +278,6 @@ struct region {
uint32 width; /* width in pixels */
uint32 length; /* length in pixels */
uint32 buffsize; /* size of buffer needed to hold the cropped region */
- unsigned char *buffptr; /* address of start of the region */
};
/* Cropping parameters from command line and image data
@@ -533,7 +532,7 @@ static int rotateContigSamples24bits(uin
static int rotateContigSamples32bits(uint16, uint16, uint16, uint32,
uint32, uint32, uint8 *, uint8 *);
static int rotateImage(uint16, struct image_data *, uint32 *, uint32 *,
- unsigned char **);
+ unsigned char **, size_t*, int);
static int mirrorImage(uint16, uint16, uint16, uint32, uint32,
unsigned char *);
static int invertImage(uint16, uint16, uint16, uint32, uint32,
@@ -5134,7 +5133,6 @@ initCropMasks (struct crop_mask *cps)
cps->regionlist[i].width = 0;
cps->regionlist[i].length = 0;
cps->regionlist[i].buffsize = 0;
- cps->regionlist[i].buffptr = NULL;
cps->zonelist[i].position = 0;
cps->zonelist[i].total = 0;
}
@@ -6367,7 +6365,12 @@ static int correct_orientation(struct i
return (-1);
}
- if (rotateImage(rotation, image, &image->width, &image->length, work_buff_ptr))
+ /* Dummy variable in order not to switch two times the
+ * image->width,->length within rotateImage(),
+ * but switch xres, yres there. */
+ uint32_t width = image->width;
+ uint32_t length = image->length;
+ if (rotateImage(rotation, image, &width, &length, work_buff_ptr, NULL, TRUE))
{
TIFFError ("correct_orientation", "Unable to rotate image");
return (-1);
@@ -6435,7 +6438,6 @@ extractCompositeRegions(struct image_dat
/* These should not be needed for composite images */
crop->regionlist[i].width = crop_width;
crop->regionlist[i].length = crop_length;
- crop->regionlist[i].buffptr = crop_buff;
src_rowsize = ((img_width * bps * spp) + 7) / 8;
dst_rowsize = (((crop_width * bps * count) + 7) / 8);
@@ -6672,7 +6674,6 @@ extractSeparateRegion(struct image_data
crop->regionlist[region].width = crop_width;
crop->regionlist[region].length = crop_length;
- crop->regionlist[region].buffptr = crop_buff;
src = read_buff;
dst = crop_buff;
@@ -7549,16 +7550,16 @@ processCropSelections(struct image_data
if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */
{
+ size_t rot_buf_size = 0;
if (rotateImage(crop->rotation, image, &crop->combined_width,
- &crop->combined_length, &crop_buff))
+ &crop->combined_length, &crop_buff, &rot_buf_size, FALSE))
{
TIFFError("processCropSelections",
"Failed to rotate composite regions by %d degrees", crop->rotation);
return (-1);
}
seg_buffs[0].buffer = crop_buff;
- seg_buffs[0].size = (((crop->combined_width * image->bps + 7 ) / 8)
- * image->spp) * crop->combined_length;
+ seg_buffs[0].size = rot_buf_size;
}
}
else /* Separated Images */
@@ -7655,8 +7656,10 @@ processCropSelections(struct image_data
if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */
{
- if (rotateImage(crop->rotation, image, &crop->regionlist[i].width,
- &crop->regionlist[i].length, &crop_buff))
+ size_t rot_buf_size = 0;
+ if (rotateImage(
+ crop->rotation, image, &crop->regionlist[i].width,
+ &crop->regionlist[i].length, &crop_buff, &rot_buf_size, FALSE))
{
TIFFError("processCropSelections",
"Failed to rotate crop region by %d degrees", crop->rotation);
@@ -7667,8 +7670,7 @@ processCropSelections(struct image_data
crop->combined_width = total_width;
crop->combined_length = total_length;
seg_buffs[i].buffer = crop_buff;
- seg_buffs[i].size = (((crop->regionlist[i].width * image->bps + 7 ) / 8)
- * image->spp) * crop->regionlist[i].length;
+ seg_buffs[i].size = rot_buf_size;
}
}
}
@@ -7788,7 +7790,7 @@ createCroppedImage(struct image_data *im
if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */
{
if (rotateImage(crop->rotation, image, &crop->combined_width,
- &crop->combined_length, crop_buff_ptr))
+ &crop->combined_length, crop_buff_ptr, NULL, TRUE))
{
TIFFError("createCroppedImage",
"Failed to rotate image or cropped selection by %d degrees", crop->rotation);
@@ -8451,13 +8453,15 @@ rotateContigSamples32bits(uint16 rotatio
/* Rotate an image by a multiple of 90 degrees clockwise */
static int
rotateImage(uint16 rotation, struct image_data *image, uint32 *img_width,
- uint32 *img_length, unsigned char **ibuff_ptr)
+ uint32 *img_length, unsigned char **ibuff_ptr, size_t *rot_buf_size,
+ int rot_image_params)
{
int shift_width;
uint32 bytes_per_pixel, bytes_per_sample;
uint32 row, rowsize, src_offset, dst_offset;
uint32 i, col, width, length;
- uint32 colsize, buffsize, col_offset, pix_offset;
+ uint32_t colsize, col_offset, pix_offset;
+ tmsize_t buffsize;
unsigned char *ibuff;
unsigned char *src;
unsigned char *dst;
@@ -8470,12 +8474,41 @@ rotateImage(uint16 rotation, struct imag
spp = image->spp;
bps = image->bps;
+ if ((spp != 0 && bps != 0 &&
+ width > (uint32_t)((UINT32_MAX - 7) / spp / bps)) ||
+ (spp != 0 && bps != 0 &&
+ length > (uint32_t)((UINT32_MAX - 7) / spp / bps)))
+ {
+ TIFFError("rotateImage", "Integer overflow detected.");
+ return (-1);
+ }
rowsize = ((bps * spp * width) + 7) / 8;
colsize = ((bps * spp * length) + 7) / 8;
if ((colsize * width) > (rowsize * length))
- buffsize = (colsize + 1) * width;
+ {
+ if (((tmsize_t)colsize + 1) != 0 &&
+ (tmsize_t)width > ((TIFF_TMSIZE_T_MAX - NUM_BUFF_OVERSIZE_BYTES) /
+ ((tmsize_t)colsize + 1)))
+ {
+ TIFFError("rotateImage",
+ "Integer overflow when calculating buffer size.");
+ return (-1);
+ }
+ buffsize = ((tmsize_t)colsize + 1) * width;
+ }
else
- buffsize = (rowsize + 1) * length;
+ {
+ if (((tmsize_t)rowsize + 1) != 0 &&
+ (tmsize_t)length > ((TIFF_TMSIZE_T_MAX - NUM_BUFF_OVERSIZE_BYTES) /
+ ((tmsize_t)rowsize + 1)))
+ {
+ TIFFError("rotateImage",
+ "Integer overflow when calculating buffer size.");
+ return (-1);
+ }
+
+ buffsize = (rowsize + 1) * length;
+ }
bytes_per_sample = (bps + 7) / 8;
bytes_per_pixel = ((bps * spp) + 7) / 8;
@@ -8498,10 +8531,12 @@ rotateImage(uint16 rotation, struct imag
/* Add 3 padding bytes for extractContigSamplesShifted32bits */
if (!(rbuff = (unsigned char *)limitMalloc(buffsize + NUM_BUFF_OVERSIZE_BYTES)))
{
- TIFFError("rotateImage", "Unable to allocate rotation buffer of %1u bytes", buffsize + NUM_BUFF_OVERSIZE_BYTES);
+ TIFFError("rotateImage", "Unable to allocate rotation buffer of %" TIFF_SSIZE_FORMAT "bytes", buffsize + NUM_BUFF_OVERSIZE_BYTES);
return (-1);
}
_TIFFmemset(rbuff, '\0', buffsize + NUM_BUFF_OVERSIZE_BYTES);
+ if (rot_buf_size != NULL)
+ *rot_buf_size = buffsize;
ibuff = *ibuff_ptr;
switch (rotation)
@@ -8642,11 +8677,15 @@ rotateImage(uint16 rotation, struct imag
*img_width = length;
*img_length = width;
- image->width = length;
- image->length = width;
- res_temp = image->xres;
- image->xres = image->yres;
- image->yres = res_temp;
+ /* Only toggle image parameters if whole input image is rotated. */
+ if (rot_image_params)
+ {
+ image->width = length;
+ image->length = width;
+ res_temp = image->xres;
+ image->xres = image->yres;
+ image->yres = res_temp;
+ }
break;
case 270: if ((bps % 8) == 0) /* byte aligned data */
@@ -8719,11 +8758,15 @@ rotateImage(uint16 rotation, struct imag
*img_width = length;
*img_length = width;
- image->width = length;
- image->length = width;
- res_temp = image->xres;
- image->xres = image->yres;
- image->yres = res_temp;
+ /* Only toggle image parameters if whole input image is rotated. */
+ if (rot_image_params)
+ {
+ image->width = length;
+ image->length = width;
+ res_temp = image->xres;
+ image->xres = image->yres;
+ image->yres = res_temp;
+ }
break;
default:
break;
