Bug #75785 [Asn->Csd]: Many errors from exif_read_data

Edit report at https://bugs.php.net/bug.php?id=75785&edit=1 ID: 75785 Updated by: nikic@php.net Reported by: opajaap at opajaap dot nl Summary: Many errors from exif_read_data -Status: Assigned +Status: Closed Type: Bug Package: EXIF related Operating System: unknown PHP Version: 7.2.1 Assigned To: kalle Block user comment: N Private report: N New Comment: Automatic comment on behalf of nickolas@phpsp.org.br Revision: http://git.php.net/?p=php-src.git;a=commit;h=2fa4ca95db262267aa6bd46c5e2f74aa42542fc3 Log: Fix bug #75785 by attempt switching endianness on Maker's Note Previous Comments: ------------------------------------------------------------------------ [2020-07-12 20:32:21] nawarian at gmail dot com Hello! I hope I'm not too late for the party. I just sent a Pull Request (https://github.com/php/php-src/pull/5849) solving the above mentioned issues (maximum nesting level and illegal ifd size). They relate to endianness on different camera models from the same manufacturer. I would be glad to receive some guidance on adding test cases for this fix. Cheers! ------------------------------------------------------------------------ [2020-07-12 20:28:49] nawarian at gmail dot com The following pull request has been associated: Patch Name: Fix Bug #75785: Add extra check for Maker's Note endianness On GitHub: https://github.com/php/php-src/pull/5849 Patch: https://github.com/php/php-src/pull/5849.patch ------------------------------------------------------------------------ [2019-07-09 17:51:08] richard at dpiworld dot com exif_thumbnail() fails with PHP 7.2.20 on CentOS 7. Works fine with same images with PHP 5.6.40. ------------------------------------------------------------------------ [2019-01-22 01:48:26] richard at dpiworld dot com Same issue using 7.2.14 on CentOS 7. Code and images work fine with PHP 5.4.16 but with PHP 7.2.14 exif text output is truncated so can't get GPS data. Can't extract thumbnails with exif_thumbnail(). These things are critical for my application and will delay moving to PHP 7. EXEC exiftool is slow. FYI, the vote system here gets an HTTP 500 error and fails. ------------------------------------------------------------------------ [2018-10-23 09:45:43] mike dot blomgren at tornado dot se exif_read_data does not read all EXIF information in certain JPEG files. Sample JPG here, that has the problem: https://www.tornado.se/piwigo/tools/sample.jpg Using exif_read_data produces the following output of 'sample.jpg': https://www.tornado.se/piwigo/tools/metadata.php I.e. it is not complete (using print_r and var_dump). The apache server produces the followong errors in error_log: [Tue Oct 23 11:38:47.425214 2018] [php7:notice] [pid 3514] [client 195.198.34.135:1104] PHP Warning: read_exif_data(sample.jpg): Process tag(x010D=DocumentNam): Illegal components(0) in /var/wwwtornado/htdocs/piwigo/tools/metadata.php on line 93 [Tue Oct 23 11:38:47.425234 2018] [php7:notice] [pid 3514] [client 195.198.34.135:1104] PHP Stack trace: [Tue Oct 23 11:38:47.425240 2018] [php7:notice] [pid 3514] [client 195.198.34.135:1104] PHP 1. {main}() /var/wwwtornado/htdocs/piwigo/tools/metadata.php:0 [Tue Oct 23 11:38:47.425243 2018] [php7:notice] [pid 3514] [client 195.198.34.135:1104] PHP 2. read_exif_data() /var/wwwtornado/htdocs/piwigo/tools/metadata.php:93 [Tue Oct 23 11:38:47.425353 2018] [php7:notice] [pid 3514] [client 195.198.34.135:1104] PHP Notice: Undefined index: IFD0 in /var/wwwtornado/htdocs/piwigo/tools/metadata.php on line 110 [Tue Oct 23 11:38:47.425364 2018] [php7:notice] [pid 3514] [client 195.198.34.135:1104] PHP Stack trace: [Tue Oct 23 11:38:47.425370 2018] [php7:notice] [pid 3514] [client 195.198.34.135:1104] PHP 1. {main}() /var/wwwtornado/htdocs/piwigo/tools/metadata.php:0 Using exif_read_data seems to 'cut' up to a certain point of the EXIF header. Specifically I want to extract the DateTimeOriginal value, but php 7.2.11 isn't able to find the value. Using jhead or exiftool fully decodes all the EXIF headers. ------------------------------------------------------------------------ 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=75785 -- Edit this bug report at https://bugs.php.net/bug.php?id=75785&edit=1