diff options
Diffstat (limited to 'CVE-2022-33068-sbix-Limit-glyph-extents.patch')
| -rw-r--r-- | CVE-2022-33068-sbix-Limit-glyph-extents.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/CVE-2022-33068-sbix-Limit-glyph-extents.patch b/CVE-2022-33068-sbix-Limit-glyph-extents.patch new file mode 100644 index 0000000..c229a3c --- /dev/null +++ b/CVE-2022-33068-sbix-Limit-glyph-extents.patch @@ -0,0 +1,30 @@ +From 62e803b36173fd096d7ad460dd1d1db9be542593 Mon Sep 17 00:00:00 2001 +From: Behdad Esfahbod <behdad@behdad.org> +Date: Wed, 1 Jun 2022 07:38:21 -0600 +Subject: [PATCH 001/363] [sbix] Limit glyph extents + +Fixes https://github.com/harfbuzz/harfbuzz/issues/3557 +--- + src/hb-ot-color-sbix-table.hh | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/src/hb-ot-color-sbix-table.hh b/src/hb-ot-color-sbix-table.hh +index 9741ebd45..6efae43cd 100644 +--- a/src/hb-ot-color-sbix-table.hh ++++ b/src/hb-ot-color-sbix-table.hh +@@ -298,6 +298,12 @@ struct sbix + + const PNGHeader &png = *blob->as<PNGHeader>(); + ++ if ((png.IHDR.height >= 65536) | (png.IHDR.width >= 65536)) ++ { ++ hb_blob_destroy (blob); ++ return false; ++ } ++ + extents->x_bearing = x_offset; + extents->y_bearing = png.IHDR.height + y_offset; + extents->width = png.IHDR.width; +-- +2.36.1 + |