diff options
Diffstat (limited to 'meta/recipes-multimedia/libtiff/files/CVE-2020-35523.patch')
-rw-r--r-- | meta/recipes-multimedia/libtiff/files/CVE-2020-35523.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/libtiff/files/CVE-2020-35523.patch b/meta/recipes-multimedia/libtiff/files/CVE-2020-35523.patch new file mode 100644 index 0000000000..1f30b32799 --- /dev/null +++ b/meta/recipes-multimedia/libtiff/files/CVE-2020-35523.patch @@ -0,0 +1,55 @@ +From c8d613ef497058fe653c467fc84c70a62a4a71b2 Mon Sep 17 00:00:00 2001 +From: Thomas Bernard <miniupnp@free.fr> +Date: Tue, 10 Nov 2020 01:54:30 +0100 +Subject: [PATCH] gtTileContig(): check Tile width for overflow + +fixes #211 + +Upstream-Status: Backport [ https://gitlab.com/libtiff/libtiff/-/commit/c8d613ef497058fe653c467fc84c70a62a4a71b2 ] +CVE: CVE-2020-35523 +Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com> +--- + libtiff/tif_getimage.c | 17 +++++++++++++---- + 1 file changed, 13 insertions(+), 4 deletions(-) + +diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c +index 4da785d3..96ab1460 100644 +--- a/libtiff/tif_getimage.c ++++ b/libtiff/tif_getimage.c +@@ -29,6 +29,7 @@ + */ + #include "tiffiop.h" + #include <stdio.h> ++#include <limits.h> + + static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32); + static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); +@@ -645,12 +646,20 @@ gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) + + flip = setorientation(img); + if (flip & FLIP_VERTICALLY) { +- y = h - 1; +- toskew = -(int32)(tw + w); ++ if ((tw + w) > INT_MAX) { ++ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "unsupported tile size (too wide)"); ++ return (0); ++ } ++ y = h - 1; ++ toskew = -(int32)(tw + w); + } + else { +- y = 0; +- toskew = -(int32)(tw - w); ++ if (tw > (INT_MAX + w)) { ++ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "unsupported tile size (too wide)"); ++ return (0); ++ } ++ y = 0; ++ toskew = -(int32)(tw - w); + } + + /* +-- +GitLab + + |