diff options
Diffstat (limited to 'gnu/packages/patches/mupdf-CVE-2016-6525.patch')
| -rw-r--r-- | gnu/packages/patches/mupdf-CVE-2016-6525.patch | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gnu/packages/patches/mupdf-CVE-2016-6525.patch b/gnu/packages/patches/mupdf-CVE-2016-6525.patch new file mode 100644 index 0000000000..370af5ade6 --- /dev/null +++ b/gnu/packages/patches/mupdf-CVE-2016-6525.patch @@ -0,0 +1,21 @@ +Fix CVE-2016-6525 (heap overflow in pdf_load_mesh_params()). + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6525 +https://security-tracker.debian.org/tracker/CVE-2016-6525 + +Patch copied from upstream source repository: +http://git.ghostscript.com/?p=mupdf.git;h=39b0f07dd960f34e7e6bf230ffc3d87c41ef0f2e + +diff --git a/source/pdf/pdf-shade.c b/source/pdf/pdf-shade.c +index 7815b3c..6e25efa 100644 +--- a/source/pdf/pdf-shade.c ++++ b/source/pdf/pdf-shade.c +@@ -206,7 +206,7 @@ pdf_load_mesh_params(fz_context *ctx, pdf_document *doc, fz_shade *shade, pdf_ob + obj = pdf_dict_get(ctx, dict, PDF_NAME_Decode); + if (pdf_array_len(ctx, obj) >= 6) + { +- n = (pdf_array_len(ctx, obj) - 4) / 2; ++ n = fz_mini(FZ_MAX_COLORS, (pdf_array_len(ctx, obj) - 4) / 2); + shade->u.m.x0 = pdf_to_real(ctx, pdf_array_get(ctx, obj, 0)); + shade->u.m.x1 = pdf_to_real(ctx, pdf_array_get(ctx, obj, 1)); + shade->u.m.y0 = pdf_to_real(ctx, pdf_array_get(ctx, obj, 2)); |