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tiff: Fix for CVE-2022-2867/8/9
Add Patch to fix CVE-2022-2867, CVE-2022-2868 CVE-2022-2869 (From OE-Core rev: 67df7488bf66183ffdb9f497f00ad291b79210d3) Signed-off-by: Virendra Thakur <virendrak@kpit.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Virendra Thakur
committed by
Richard Purdie
Richard Purdie
parent
b9c73d6591
commit
a98b309fe2
+159
@@ -0,0 +1,159 @@
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From 07d79fcac2ead271b60e32aeb80f7b4f3be9ac8c Mon Sep 17 00:00:00 2001
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From: Su Laus <sulau@freenet.de>
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Date: Wed, 9 Feb 2022 21:31:29 +0000
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Subject: [PATCH] tiffcrop.c: Fix issue #352 heap-buffer-overflow by correcting
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uint32_t underflow.
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CVE: CVE-2022-2867 CVE-2022-2868 CVE-2022-2869
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Upstream-Status: Backport [https://gitlab.com/libtiff/libtiff/-/commit/07d79fcac2ead271b60e32aeb80f7b4f3be9ac8c]
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Signed-off-by: Virendra Thakur <virendrak@kpit.com>
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---
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Index: tiff-4.1.0/tools/tiffcrop.c
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===================================================================
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--- tiff-4.1.0.orig/tools/tiffcrop.c
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+++ tiff-4.1.0/tools/tiffcrop.c
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@@ -5153,29 +5153,45 @@ computeInputPixelOffsets(struct crop_mas
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y1 = _TIFFClampDoubleToUInt32(crop->corners[i].Y1);
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y2 = _TIFFClampDoubleToUInt32(crop->corners[i].Y2);
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}
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- if (x1 < 1)
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- crop->regionlist[i].x1 = 0;
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- else
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- crop->regionlist[i].x1 = (uint32) (x1 - 1);
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+ /* a) Region needs to be within image sizes 0.. width-1; 0..length-1
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+ * b) Corners are expected to be submitted as top-left to bottom-right.
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+ * Therefore, check that and reorder input.
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+ * (be aware x,y are already casted to (uint32_t) and avoid (0 - 1) )
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+ */
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+ uint32_t aux;
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+ if (x1 > x2) {
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+ aux = x1;
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+ x1 = x2;
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+ x2 = aux;
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+ }
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+ if (y1 > y2) {
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+ aux = y1;
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+ y1 = y2;
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+ y2 = aux;
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+ }
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+ if (x1 > image->width - 1)
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+ crop->regionlist[i].x1 = image->width - 1;
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+ else if (x1 > 0)
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+ crop->regionlist[i].x1 = (uint32_t)(x1 - 1);
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if (x2 > image->width - 1)
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crop->regionlist[i].x2 = image->width - 1;
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- else
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- crop->regionlist[i].x2 = (uint32) (x2 - 1);
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- zwidth = crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1;
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-
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- if (y1 < 1)
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- crop->regionlist[i].y1 = 0;
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- else
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- crop->regionlist[i].y1 = (uint32) (y1 - 1);
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+ else if (x2 > 0)
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+ crop->regionlist[i].x2 = (uint32_t)(x2 - 1);
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+
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+ zwidth = crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1;
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+
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+ if (y1 > image->length - 1)
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+ crop->regionlist[i].y1 = image->length - 1;
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+ else if (y1 > 0)
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+ crop->regionlist[i].y1 = (uint32_t)(y1 - 1);
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if (y2 > image->length - 1)
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crop->regionlist[i].y2 = image->length - 1;
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- else
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- crop->regionlist[i].y2 = (uint32) (y2 - 1);
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-
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- zlength = crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1;
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+ else if (y2 > 0)
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+ crop->regionlist[i].y2 = (uint32_t)(y2 - 1);
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+ zlength = crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1;
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if (zwidth > max_width)
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max_width = zwidth;
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if (zlength > max_length)
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@@ -5205,7 +5221,7 @@ computeInputPixelOffsets(struct crop_mas
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}
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}
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return (0);
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- }
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+ } /* crop_mode == CROP_REGIONS */
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/* Convert crop margins into offsets into image
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* Margins are expressed as pixel rows and columns, not bytes
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@@ -5241,7 +5257,7 @@ computeInputPixelOffsets(struct crop_mas
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bmargin = (uint32) 0;
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return (-1);
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}
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- }
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+ } /* crop_mode == CROP_MARGINS */
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else
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{ /* no margins requested */
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tmargin = (uint32) 0;
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@@ -5332,24 +5348,23 @@ computeInputPixelOffsets(struct crop_mas
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off->endx = endx;
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off->endy = endy;
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- crop_width = endx - startx + 1;
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- crop_length = endy - starty + 1;
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-
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- if (crop_width <= 0)
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+ if (endx + 1 <= startx)
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{
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TIFFError("computeInputPixelOffsets",
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"Invalid left/right margins and /or image crop width requested");
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return (-1);
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}
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+ crop_width = endx - startx + 1;
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if (crop_width > image->width)
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crop_width = image->width;
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- if (crop_length <= 0)
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+ if (endy + 1 <= starty)
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{
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TIFFError("computeInputPixelOffsets",
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"Invalid top/bottom margins and /or image crop length requested");
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return (-1);
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}
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+ crop_length = endy - starty + 1;
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if (crop_length > image->length)
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crop_length = image->length;
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@@ -5449,10 +5464,17 @@ getCropOffsets(struct image_data *image,
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else
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crop->selections = crop->zones;
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- for (i = 0; i < crop->zones; i++)
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+ /* Initialize regions iterator i */
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+ i = 0;
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+ for (int j = 0; j < crop->zones; j++)
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{
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- seg = crop->zonelist[i].position;
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- total = crop->zonelist[i].total;
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+ seg = crop->zonelist[j].position;
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+ total = crop->zonelist[j].total;
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+
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+ /* check for not allowed zone cases like 0:0; 4:3; etc. and skip that input */
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+ if (seg == 0 || total == 0 || seg > total) {
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+ continue;
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+ }
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switch (crop->edge_ref)
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{
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@@ -5581,8 +5603,11 @@ getCropOffsets(struct image_data *image,
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i + 1, (uint32)zwidth, (uint32)zlength,
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crop->regionlist[i].x1, crop->regionlist[i].x2,
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crop->regionlist[i].y1, crop->regionlist[i].y2);
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+ /* increment regions iterator */
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+ i++;
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}
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-
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+ /* set number of generated regions out of given zones */
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+ crop->selections = i;
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return (0);
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} /* end getCropOffsets */
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--
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GitLab
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@@ -26,6 +26,7 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \
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file://CVE-2022-0924.patch \
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file://CVE-2022-0924.patch \
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file://CVE-2022-2056-CVE-2022-2057-CVE-2022-2058.patch \
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file://CVE-2022-2056-CVE-2022-2057-CVE-2022-2058.patch \
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file://CVE-2022-34526.patch \
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file://CVE-2022-34526.patch \
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file://CVE-2022-2867-CVE-2022-2868-CVE-2022-2869.patch \
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"
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"
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SRC_URI[md5sum] = "2165e7aba557463acc0664e71a3ed424"
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SRC_URI[md5sum] = "2165e7aba557463acc0664e71a3ed424"
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SRC_URI[sha256sum] = "5d29f32517dadb6dbcd1255ea5bbc93a2b54b94fbf83653b4d65c7d6775b8634"
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SRC_URI[sha256sum] = "5d29f32517dadb6dbcd1255ea5bbc93a2b54b94fbf83653b4d65c7d6775b8634"
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