SHA256
1
0
forked from pool/libpng16
libpng16/libpng16-CVE-2018-13785.patch
Petr Gajdos 017efe162c - security update:
* CVE-2018-13785 [bsc#1100687]
    + libpng16-CVE-2018-13785.patch

OBS-URL: https://build.opensuse.org/package/show/graphics/libpng16?expand=0&rev=109
2018-08-01 08:04:03 +00:00

14 lines
701 B
Diff

Index: libpng-1.6.34/pngrutil.c
===================================================================
--- libpng-1.6.34.orig/pngrutil.c 2017-09-29 10:40:57.000000000 +0200
+++ libpng-1.6.34/pngrutil.c 2018-08-01 09:59:02.399741891 +0200
@@ -3149,7 +3149,7 @@ png_check_chunk_length(png_const_structr
{
png_alloc_size_t idat_limit = PNG_UINT_31_MAX;
size_t row_factor =
- (png_ptr->width * png_ptr->channels * (png_ptr->bit_depth > 8? 2: 1)
+ ((size_t)png_ptr->width * (size_t)png_ptr->channels * (png_ptr->bit_depth > 8? 2: 1)
+ 1 + (png_ptr->interlaced? 6: 0));
if (png_ptr->height > PNG_UINT_32_MAX/row_factor)
idat_limit=PNG_UINT_31_MAX;