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fix CVE-2023-0795~0804

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zhouwenpei 2023-02-16 11:39:47 +00:00
parent 79ccdbca32
commit 320bc0e2e3
4 changed files with 418 additions and 1 deletions
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120
backport-0001-CVE-2023-0795-0796-0797-0798-0799.patch Normal file
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From 9c22495e5eeeae9e00a1596720c969656bb8d678 Mon Sep 17 00:00:00 2001
From: Su_Laus <sulau@freenet.de>
Date: Fri, 3 Feb 2023 15:31:31 +0100
Subject: [PATCH] tiffcrop correctly update buffersize after rotateImage()
fix#520 rotateImage() set up a new buffer and calculates its size
individually. Therefore, seg_buffs[] size needs to be updated accordingly.
Before this fix, the seg_buffs buffer size was calculated with a different
formula than within rotateImage().
Closes #520.
---
tools/tiffcrop.c | 36 ++++++++++++++++++++----------------
1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
index 7db69883..f8b66188 100644
--- a/tools/tiffcrop.c
+++ b/tools/tiffcrop.c
@@ -577,7 +577,7 @@ static int rotateContigSamples24bits(uint16_t, uint16_t, uint16_t, uint32_t,
static int rotateContigSamples32bits(uint16_t, uint16_t, uint16_t, uint32_t,
uint32_t, uint32_t, uint8_t *, uint8_t *);
static int rotateImage(uint16_t, struct image_data *, uint32_t *, uint32_t *,
- unsigned char **);
+ unsigned char **, size_t *);
static int mirrorImage(uint16_t, uint16_t, uint16_t, uint32_t, uint32_t,
unsigned char *);
static int invertImage(uint16_t, uint16_t, uint16_t, uint32_t, uint32_t,
@@ -7243,7 +7243,7 @@ static int correct_orientation(struct image_data *image,
}
if (rotateImage(rotation, image, &image->width, &image->length,
- work_buff_ptr))
+ work_buff_ptr, NULL))
{
TIFFError("correct_orientation", "Unable to rotate image");
return (-1);
@@ -8563,8 +8563,12 @@ static int processCropSelections(struct image_data *image,
if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can
reallocate the buffer */
{
+ /* rotateImage() set up a new buffer and calculates its size
+ * individually. Therefore, seg_buffs size needs to be updated
+ * accordingly. */
+ 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))
{
TIFFError("processCropSelections",
"Failed to rotate composite regions by %" PRIu32
@@ -8573,9 +8577,7 @@ static int processCropSelections(struct image_data *image,
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 */
@@ -8686,10 +8688,13 @@ static int processCropSelections(struct image_data *image,
* ->yres, what it schouldn't do here, when more than one
* section is processed. ToDo: Therefore rotateImage() and its
* usage has to be reworked (e.g. like mirrorImage()) !!
- */
- if (rotateImage(crop->rotation, image,
- &crop->regionlist[i].width,
- &crop->regionlist[i].length, &crop_buff))
+ * Furthermore, rotateImage() set up a new buffer and calculates
+ * its size individually. Therefore, seg_buffs size needs to be
+ * updated accordingly. */
+ size_t rot_buf_size = 0;
+ if (rotateImage(
+ crop->rotation, image, &crop->regionlist[i].width,
+ &crop->regionlist[i].length, &crop_buff, &rot_buf_size))
{
TIFFError("processCropSelections",
"Failed to rotate crop region by %" PRIu16
@@ -8702,10 +8707,7 @@ static int processCropSelections(struct image_data *image,
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;
}
} /* for crop->selections loop */
} /* Separated Images (else case) */
@@ -8836,7 +8838,7 @@ static int createCroppedImage(struct image_data *image, struct crop_mask *crop,
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))
{
TIFFError("createCroppedImage",
"Failed to rotate image or cropped selection by %" PRIu16
@@ -9552,7 +9554,7 @@ static int rotateContigSamples32bits(uint16_t rotation, uint16_t spp,
/* Rotate an image by a multiple of 90 degrees clockwise */
static int rotateImage(uint16_t rotation, struct image_data *image,
uint32_t *img_width, uint32_t *img_length,
- unsigned char **ibuff_ptr)
+ unsigned char **ibuff_ptr, size_t *rot_buf_size)
{
int shift_width;
uint32_t bytes_per_pixel, bytes_per_sample;
@@ -9610,6 +9612,8 @@ static int rotateImage(uint16_t rotation, struct image_data *image,
return (-1);
}
_TIFFmemset(rbuff, '\0', buffsize + NUM_BUFF_OVERSIZE_BYTES);
+ if (rot_buf_size != NULL)
+ *rot_buf_size = buffsize;
ibuff = *ibuff_ptr;
switch (rotation)
--
GitLab

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From 82a7fbb1fa7228499ffeb3a57a1d106a9626d57c Mon Sep 17 00:00:00 2001
From: Su Laus <sulau@freenet.de>
Date: Sun, 5 Feb 2023 15:53:15 +0000
Subject: [PATCH] tiffcrop: added check for assumption on composite images
(fixes #496)
tiffcrop: For composite images with more than one region, the combined_length or combined_width always needs to be equal, respectively. Otherwise, even the first section/region copy action might cause buffer overrun. This is now checked before the first copy action.
Closes #496, #497, #498, #500, #501.
---
tools/tiffcrop.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 66 insertions(+), 2 deletions(-)
diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
index 84e26ac6..480b927c 100644
--- a/tools/tiffcrop.c
+++ b/tools/tiffcrop.c
@@ -5935,18 +5935,40 @@ static int computeInputPixelOffsets(struct crop_mask *crop,
crop->regionlist[i].buffsize = buffsize;
crop->bufftotal += buffsize;
+
+ /* For composite images with more than one region, the
+ * combined_length or combined_width always needs to be equal,
+ * respectively.
+ * Otherwise, even the first section/region copy
+ * action might cause buffer overrun. */
if (crop->img_mode == COMPOSITE_IMAGES)
{
switch (crop->edge_ref)
{
case EDGE_LEFT:
case EDGE_RIGHT:
+ if (i > 0 && zlength != crop->combined_length)
+ {
+ TIFFError(
+ "computeInputPixelOffsets",
+ "Only equal length regions can be combined for "
+ "-E left or right");
+ return (-1);
+ }
crop->combined_length = zlength;
crop->combined_width += zwidth;
break;
case EDGE_BOTTOM:
case EDGE_TOP: /* width from left, length from top */
default:
+ if (i > 0 && zwidth != crop->combined_width)
+ {
+ TIFFError("computeInputPixelOffsets",
+ "Only equal width regions can be "
+ "combined for -E "
+ "top or bottom");
+ return (-1);
+ }
crop->combined_width = zwidth;
crop->combined_length += zlength;
break;
@@ -7301,6 +7323,46 @@ static int extractCompositeRegions(struct image_data *image,
crop->combined_width = 0;
crop->combined_length = 0;
+ /* If there is more than one region, check beforehand whether all the width
+ * and length values of the regions are the same, respectively. */
+ switch (crop->edge_ref)
+ {
+ default:
+ case EDGE_TOP:
+ case EDGE_BOTTOM:
+ for (i = 1; i < crop->selections; i++)
+ {
+ uint32_t crop_width0 =
+ crop->regionlist[i - 1].x2 - crop->regionlist[i - 1].x1 + 1;
+ uint32_t crop_width1 =
+ crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1;
+ if (crop_width0 != crop_width1)
+ {
+ TIFFError("extractCompositeRegions",
+ "Only equal width regions can be combined for -E "
+ "top or bottom");
+ return (1);
+ }
+ }
+ break;
+ case EDGE_LEFT:
+ case EDGE_RIGHT:
+ for (i = 1; i < crop->selections; i++)
+ {
+ uint32_t crop_length0 =
+ crop->regionlist[i - 1].y2 - crop->regionlist[i - 1].y1 + 1;
+ uint32_t crop_length1 =
+ crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1;
+ if (crop_length0 != crop_length1)
+ {
+ TIFFError("extractCompositeRegions",
+ "Only equal length regions can be combined for "
+ "-E left or right");
+ return (1);
+ }
+ }
+ }
+
for (i = 0; i < crop->selections; i++)
{
/* rows, columns, width, length are expressed in pixels */
@@ -7325,7 +7387,8 @@ static int extractCompositeRegions(struct image_data *image,
default:
case EDGE_TOP:
case EDGE_BOTTOM:
- if ((i > 0) && (crop_width != crop->regionlist[i - 1].width))
+ if ((crop->selections > i + 1) &&
+ (crop_width != crop->regionlist[i + 1].width))
{
TIFFError("extractCompositeRegions",
"Only equal width regions can be combined for -E "
@@ -7418,7 +7481,8 @@ static int extractCompositeRegions(struct image_data *image,
case EDGE_LEFT: /* splice the pieces of each row together, side by
side */
case EDGE_RIGHT:
- if ((i > 0) && (crop_length != crop->regionlist[i - 1].length))
+ if ((crop->selections > i + 1) &&
+ (crop_length != crop->regionlist[i + 1].length))
{
TIFFError("extractCompositeRegions",
"Only equal length regions can be combined for "
--
GitLab

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@ -0,0 +1,162 @@
From 69818e2f2d246e6631ac2a2da692c3706b849c38 Mon Sep 17 00:00:00 2001
From: Su_Laus <sulau@freenet.de>
Date: Sun, 29 Jan 2023 11:09:26 +0100
Subject: [PATCH] tiffcrop: Amend rotateImage() not to toggle the input (main)
image width and length parameters when only cropped image sections are
rotated. Remove buffptr from region structure because never used.
Closes #492 #493 #494 #495 #499 #518 #519
---
tools/tiffcrop.c | 59 ++++++++++++++++++++++++++++--------------------
1 file changed, 35 insertions(+), 24 deletions(-)
diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
index ebea7475..519871ec 100644
--- a/tools/tiffcrop.c
+++ b/tools/tiffcrop.c
@@ -296,7 +296,6 @@ struct region
uint32_t width; /* width in pixels */
uint32_t length; /* length in pixels */
uint32_t 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
@@ -577,7 +576,7 @@ static int rotateContigSamples24bits(uint16_t, uint16_t, uint16_t, uint32_t,
static int rotateContigSamples32bits(uint16_t, uint16_t, uint16_t, uint32_t,
uint32_t, uint32_t, uint8_t *, uint8_t *);
static int rotateImage(uint16_t, struct image_data *, uint32_t *, uint32_t *,
- unsigned char **, size_t *);
+ unsigned char **, size_t *, int);
static int mirrorImage(uint16_t, uint16_t, uint16_t, uint32_t, uint32_t,
unsigned char *);
static int invertImage(uint16_t, uint16_t, uint16_t, uint32_t, uint32_t,
@@ -5782,7 +5781,6 @@ static void 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;
}
@@ -7266,9 +7264,13 @@ static int correct_orientation(struct image_data *image,
(uint16_t)(image->adjustments & ROTATE_ANY));
return (-1);
}
-
- if (rotateImage(rotation, image, &image->width, &image->length,
- work_buff_ptr, NULL))
+ /* 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);
@@ -7377,7 +7379,6 @@ static int extractCompositeRegions(struct image_data *image,
/* 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);
@@ -7640,7 +7641,6 @@ static int extractSeparateRegion(struct image_data *image,
crop->regionlist[region].width = crop_width;
crop->regionlist[region].length = crop_length;
- crop->regionlist[region].buffptr = crop_buff;
src = read_buff;
dst = crop_buff;
@@ -8635,7 +8635,8 @@ static int processCropSelections(struct image_data *image,
* accordingly. */
size_t rot_buf_size = 0;
if (rotateImage(crop->rotation, image, &crop->combined_width,
- &crop->combined_length, &crop_buff, &rot_buf_size))
+ &crop->combined_length, &crop_buff, &rot_buf_size,
+ FALSE))
{
TIFFError("processCropSelections",
"Failed to rotate composite regions by %" PRIu32
@@ -8759,9 +8760,10 @@ static int processCropSelections(struct image_data *image,
* its size individually. Therefore, seg_buffs size needs to be
* updated accordingly. */
size_t rot_buf_size = 0;
- if (rotateImage(
- crop->rotation, image, &crop->regionlist[i].width,
- &crop->regionlist[i].length, &crop_buff, &rot_buf_size))
+ 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 %" PRIu16
@@ -8905,7 +8907,7 @@ static int createCroppedImage(struct image_data *image, struct crop_mask *crop,
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, NULL))
+ &crop->combined_length, crop_buff_ptr, NULL, TRUE))
{
TIFFError("createCroppedImage",
"Failed to rotate image or cropped selection by %" PRIu16
@@ -9621,7 +9623,8 @@ static int rotateContigSamples32bits(uint16_t rotation, uint16_t spp,
/* Rotate an image by a multiple of 90 degrees clockwise */
static int rotateImage(uint16_t rotation, struct image_data *image,
uint32_t *img_width, uint32_t *img_length,
- unsigned char **ibuff_ptr, size_t *rot_buf_size)
+ unsigned char **ibuff_ptr, size_t *rot_buf_size,
+ int rot_image_params)
{
int shift_width;
uint32_t bytes_per_pixel, bytes_per_sample;
@@ -9869,11 +9872,15 @@ static int rotateImage(uint16_t rotation, struct image_data *image,
*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:
@@ -9956,11 +9963,15 @@ static int rotateImage(uint16_t rotation, struct image_data *image,
*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;
--
GitLab

9
libtiff.spec
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@ -1,12 +1,15 @@
Name: libtiff
Version: 4.5.0
Release: 1
Release: 2
Summary: TIFF Library and Utilities
License: libtiff
URL: https://www.simplesystems.org/libtiff/
Source0: https://download.osgeo.org/libtiff/tiff-%{version}.tar.gz
Patch6000: backport-CVE-2022-48281.patch
Patch6001: backport-0001-CVE-2023-0795-0796-0797-0798-0799.patch
Patch6002: backport-0002-CVE-2023-0795-0796-0797-0798-0799.patch
Patch6003: backport-CVE-2023-0800-0801-0802-0803-0804.patch
BuildRequires: gcc gcc-c++ zlib-devel libjpeg-devel jbigkit-devel
BuildRequires: libtool automake autoconf pkgconfig libtiff
@ -129,6 +132,10 @@ find doc -name 'Makefile*' | xargs rm
%exclude %{_mandir}/man1/*
%changelog
* Thu Feb 16 2023 zhouwenpei <zhouwenpei1@h-partners.com> - 4.5.0-2
- fix CVE-2023-0795,CVE-2023-0796,CVE-2023-0797,CVE-2023-0798,CVE-2023-0799,
- fix CVE-2023-0800,CVE-2023-0801,CVE-2023-0802,CVE-2023-0803,CVE-2023-0804
* Thu Feb 09 2023 zhouwenpei <zhouwenpei1@h-partners.com> - 4.5.0-1
- update to 4.5.0