diff options
Diffstat (limited to 'php-bug77753.patch')
| -rw-r--r-- | php-bug77753.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/php-bug77753.patch b/php-bug77753.patch new file mode 100644 index 0000000..bcb324d --- /dev/null +++ b/php-bug77753.patch @@ -0,0 +1,34 @@ +Without test as binary patch not supported + + + + +From 1e7511f2476380f9eb523f60817610c8eab6b116 Mon Sep 17 00:00:00 2001 +From: Stanislav Malyshev <stas@php.net> +Date: Sun, 17 Mar 2019 22:54:46 -0700 +Subject: [PATCH] Fix bug #77753 - Heap-buffer-overflow in php_ifd_get32s + +(cherry picked from commit f3aefc6d071b807ddacae0a0bc49f09c38e18490) +--- + ext/exif/exif.c | 4 ++++ + ext/exif/tests/bug77753.phpt | 16 ++++++++++++++++ + ext/exif/tests/bug77753.tiff | Bin 0 -> 873 bytes + 3 files changed, 20 insertions(+) + create mode 100644 ext/exif/tests/bug77753.phpt + create mode 100644 ext/exif/tests/bug77753.tiff + +diff --git a/ext/exif/exif.c b/ext/exif/exif.c +index ce8db170c7..4350124305 100644 +--- a/ext/exif/exif.c ++++ b/ext/exif/exif.c +@@ -2812,6 +2812,10 @@ static int exif_process_IFD_in_MAKERNOTE(image_info_type *ImageInfo, char * valu + exif_error_docref("exif_read_data#error_ifd" EXIFERR_CC, ImageInfo, E_WARNING, "Illegal IFD size: 2 + 0x%04X*12 = 0x%04X > 0x%04X", NumDirEntries, 2+NumDirEntries*12, value_len); + return FALSE; + } ++ if ((dir_start - value_ptr) > value_len - (2+NumDirEntries*12)) { ++ exif_error_docref("exif_read_data#error_ifd" EXIFERR_CC, ImageInfo, E_WARNING, "Illegal IFD size: 0x%04X > 0x%04X", (dir_start - value_ptr) + (2+NumDirEntries*12), value_len); ++ return FALSE; ++ } + + for (de=0;de<NumDirEntries;de++) { + if (!exif_process_IFD_TAG(ImageInfo, dir_start + 2 + 12 * de, |