diff --git a/libtiff-CVE-2023-0804.patch b/libtiff-CVE-2023-0804.patch new file mode 100644 index 0000000..70cf400 --- /dev/null +++ b/libtiff-CVE-2023-0804.patch @@ -0,0 +1,124 @@ +From 82a7fbb1fa7228499ffeb3a57a1d106a9626d57c Mon Sep 17 00:00:00 2001 +From: Su Laus +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 +@@ -5329,18 +5329,39 @@ + + 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; +@@ -6546,6 +6567,46 @@ + 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 */ +@@ -6570,7 +6631,8 @@ + 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 top or bottom"); +@@ -6651,7 +6713,8 @@ + break; + 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 -E left or right"); diff --git a/libtiff.spec b/libtiff.spec index 9ed12a9..88efd7d 100644 --- a/libtiff.spec +++ b/libtiff.spec @@ -1,7 +1,7 @@ Summary: Library of functions for manipulating TIFF format image files Name: libtiff Version: 4.4.0 -Release: 5%{?dist} +Release: 6%{?dist} License: libtiff URL: http://www.simplesystems.org/libtiff/ @@ -11,6 +11,7 @@ Patch0: libtiff-am-version.patch Patch1: libtiff-make-check.patch Patch2: libtiff-CVE-2022-2056_2057_2058.patch Patch3: libtiff-CVE-2022-34526.patch +Patch4: libtiff-CVE-2023-0804.patch BuildRequires: gcc, gcc-c++ BuildRequires: zlib-devel libjpeg-devel jbigkit-devel libzstd-devel libwebp-devel @@ -58,12 +59,13 @@ This package contains command-line programs for manipulating TIFF format image files using the libtiff library. %prep -%setup -q -n tiff-%{version} +%autosetup -n tiff-%{version} -N -%patch0 -p1 -%patch1 -p1 -%patch2 -p1 -%patch3 -p1 +%patch0 -p1 -b .backup +%patch1 -p1 -b .backup +%patch2 -p1 -b .backup +%patch3 -p1 -b .backup +%patch4 -p1 -b .backup # Use build system's libtool.m4, not the one in the package. rm -f libtool.m4 @@ -168,6 +170,9 @@ find html -name 'Makefile*' | xargs rm %{_mandir}/man1/* %changelog +* Sun Feb 19 2023 Antonio Trande - 4.4.0-6 +- Fix CVE-2023-0804 (#2170195) + * Thu Jan 19 2023 Fedora Release Engineering - 4.4.0-5 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild