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Bug #14731 read_exif_data crash reading specific images
Submitted: 2001-12-28 07:26 UTC Modified: 2005-02-01 23:00 UTC
Votes:6
Avg. Score:4.0 ± 1.4
Reproduced:4 of 5 (80.0%)
Same Version:3 (75.0%)
Same OS:0 (0.0%)
From: jt-news at thoestesen dot dk Assigned: helly (profile)
Status: Closed Package: EXIF related
PHP Version: 4.1.0 OS: FreeBSD 4.4
Private report: No CVE-ID: None
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From: jt-news at thoestesen dot dk
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 [2001-12-28 07:26 UTC] jt-news at thoestesen dot dk 
When calling read_exif_data with a picture taken with a Kodak DC240 it causes PHP to crash. (This error is probably related to bug #14026)

It seems to be caused to the (mis-)reading of the thumbnail-info from the exif-tag. After changing the ext/exif.c and removing the cases TAG_JPEGQUAL and TAG_MACRO at line 760-779, the read_exif_data runs without any problems - But then (of course) it only read the data about the picture and not the thumbnail.

To reproduce call read_exif_data with any photo taken with a Kodak DC240
Examplephoto http://thoestesen.dk/DCP_4030.JPG

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 [2002-01-11 17:43 UTC] chrille at isa dot dknet dot dk 
I've been strugling with this issue for some time, also on FreeBSD 4.4-stable. The bug still exists in CVS as of today. I can also conform that removing TAG_JPEGQUAL and TAG_MACRO fixes the problem.
 [2002-02-11 23:01 UTC] cvig at raw-io dot com 
I had it working ok when reading one file from a DC4800.  Tried to open 10 in a row and I got the following error in the apache log file for each file:

FATAL:  emalloc():  Unable to allocate -2147483648 bytes

FreeBSD 4.5, PHP 4.1.1
 [2002-02-21 04:40 UTC] limefest at NOSPAM dot underworld dot net 
I get the same problem reported here. It doesn't break on all my images. Just certain ones (all taken with the same camera.)

Apache logs:
FATAL:  emalloc():  Unable to allocate -2147483648 bytes

System Info:
Apache/1.3.22 (Unix)  (Red-Hat/Linux) mod_ssl/2.8.5 OpenSSL/0.9.6b DAV/1.0.2 PHP/4.1.1 mod_perl/1.24_01
 [2002-02-21 04:41 UTC] limefest at NOSPAM dot underworld dot net 
... camera is Pentax Optio 330
 [2002-03-02 12:11 UTC] helly@php.net 
This bug has been fixed in CVS.

Original version was not really standard complient...

Hope i fixed all. But i implemented a test mechanism and
it works with all files from exif.org now.
 
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