Bug #62523 [Com]: php crashes with segfault when exif_read_data called

Edit report at https://bugs.php.net/bug.php?id=62523&edit=1 ID: 62523 Comment by: glen at delfi dot ee Reported by: bigbug at mafia dot lv Summary: php crashes with segfault when exif_read_data called Status: Feedback Type: Bug Package: Reproducible crash Operating System: linux PHP Version: 5.3Git-2012-07-10 (snap) Assigned To: rasmus Block user comment: N Private report: N New Comment: please note that this patch makes 64bit platforms crash due misuse of int (4 bytes) vs size_t (8bytes) https://code.google.com/p/php52-backports/issues/detail?id=36 attaching fix to that ticket there Previous Comments: ------------------------------------------------------------------------ [2013-10-22 05:10:40] pajoye@php.net Same here, using latest 5.5 or snaps: php_exif.dll!php_ifd_get16u(void * value, int motorola_intel) Line 1095 C php_exif.dll!exif_iif_add_value(image_info_type * image_info, int section_index, char * name, int tag, int format, int length, void * value, int motorola_intel, void * * * tsrm_ls) Line 1754 C php_exif.dll!exif_process_IFD_TAG(image_info_type * ImageInfo, char * dir_entry, char * offset_base, unsigned int IFDlength, unsigned int displacement, int section_index, int ReadNextIFD, const tag_info_type * tag_table, void * * * tsrm_ls) Line 3111 C php_exif.dll!exif_process_IFD_in_MAKERNOTE(image_info_type * ImageInfo, char * value_ptr, int value_len, char * offset_base, unsigned int IFDlength, unsigned int displacement, void * * * tsrm_ls) Line 2789 C php_exif.dll!exif_process_IFD_TAG(image_info_type * ImageInfo, char * dir_entry, char * offset_base, unsigned int IFDlength, unsigned int displacement, int section_index, int ReadNextIFD, const tag_info_type * tag_table, void * * * tsrm_ls) Line 3064 C php_exif.dll!exif_process_IFD_in_JPEG(image_info_type * ImageInfo, char * dir_start, char * offset_base, unsigned int IFDlength, unsigned int displacement, int section_index, void * * * tsrm_ls) Line 3139 C php_exif.dll!exif_process_IFD_TAG(image_info_type * ImageInfo, char * dir_entry, char * offset_base, unsigned int IFDlength, unsigned int displacement, int section_index, int ReadNextIFD, const tag_info_type * tag_table, void * * * tsrm_ls) Line 3101 C php_exif.dll!exif_process_IFD_in_JPEG(image_info_type * ImageInfo, char * dir_start, char * offset_base, unsigned int IFDlength, unsigned int displacement, int section_index, void * * * tsrm_ls) Line 3139 C php_exif.dll!exif_process_TIFF_in_JPEG(image_info_type * ImageInfo, char * CharBuf, unsigned int length, unsigned int displacement, void * * * tsrm_ls) Line 3222 C php_exif.dll!exif_process_APP1(image_info_type * ImageInfo, char * CharBuf, unsigned int length, unsigned int displacement, void * * * tsrm_ls) Line 3240 C php_exif.dll!exif_scan_JPEG_header(image_info_type * ImageInfo, void * * * tsrm_ls) Line 3426 C php_exif.dll!exif_scan_FILE_header(image_info_type * ImageInfo, void * * * tsrm_ls) Line 3767 C php_exif.dll!exif_read_file(image_info_type * ImageInfo, char * FileName, int read_thumbnail, int read_all, void * * * tsrm_ls) Line 3908 C php_exif.dll!zif_exif_read_data(int ht, _zval_struct * return_value, _zval_struct * * return_value_ptr, _zval_struct * this_ptr, int return_value_used, void * * * tsrm_ls) Line 3960 C ------------------------------------------------------------------------ [2013-10-21 23:12:27] info at getid3 dot org Problem exists for me in PHP 5.4.7 that I have installed here. Using the original poster's sample code and sample file (or my own sample file linked above) Apache crashed with this in the log: [notice] Parent: child process exited with status 255 -- Restarting. [notice] Apache/2.2.21 (Win32) PHP/5.4.7 configured -- resuming normal operations ------------------------------------------------------------------------ [2013-10-21 22:26:49] mike@php.net Cannot reproduce with PHP-5.4+ ------------------------------------------------------------------------ [2013-10-17 06:13:54] kbinaz at gmail dot com Any update on this bug? I've also run into this same problem with using exif to read data from some jpeg's. The script dies with a segmentation fault. I've applied Dominic's patch manually and re-compiled, and it seems to fix the issue. Any eta on when it will make it to PHP source? ------------------------------------------------------------------------ [2013-05-21 16:15:22] bigbug at mafia dot lv Thanks! The patch really works! ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=62523 -- Edit this bug report at https://bugs.php.net/bug.php?id=62523&edit=1