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Bug #28451 Infinite recursion in ext/exif
Submitted: 2004-05-20 01:18 UTC Modified: 2005-02-01 22:54 UTC
Votes:4
Avg. Score:4.5 ± 0.9
Reproduced:3 of 3 (100.0%)
Same Version:1 (33.3%)
Same OS:2 (66.7%)
From: rasmus@php.net Assigned:
Status: Closed Package: EXIF related
PHP Version: 4CVS, 5CVS (2004-12-12) OS: *
Private report: No CVE-ID: None
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 [2004-05-20 01:18 UTC] rasmus@php.net 
Description:
------------
This jpg (http://lerdorf.com/file.jpg) causes infinite recursion leading to a crash.

I'll get to fixing it eventually, but can't right now and don't want it to go unfixed for too long, so if anybody else is keen...

Reproduce code:
---------------
<?php
$exif=exif_read_data('http://lerdorf.com/file.jpg');
?>

Actual result:
--------------
#1087 0x08090f77 in exif_process_IFD_TAG (ImageInfo=0xbfffcc50,
    dir_entry=0x1 <Address 0x1 out of bounds>, offset_base=0x84f4bac "MM", IFDlength=24989,
    displacement=12, section_index=7, ReadNextIFD=1, tag_table=0x827ccc0)
    at /home/rasmus/php43/ext/exif/exif.c:2955
#1088 0x0809152e in exif_process_IFD_in_JPEG (ImageInfo=0xbfffcc50, dir_start=0x84f4bf0 "",
    offset_base=0x84f4bac "MM", IFDlength=24989, displacement=12, section_index=7)
    at /home/rasmus/php43/ext/exif/exif.c:2990
#1089 0x08090f77 in exif_process_IFD_TAG (ImageInfo=0xbfffcc50,
    dir_entry=0x1 <Address 0x1 out of bounds>, offset_base=0x84f4bac "MM", IFDlength=24989,
    displacement=12, section_index=7, ReadNextIFD=1, tag_table=0x827ccc0)
    at /home/rasmus/php43/ext/exif/exif.c:2955
#1090 0x0809152e in exif_process_IFD_in_JPEG (ImageInfo=0xbfffcc50, dir_start=0x84f4bf0 "",
    offset_base=0x84f4bac "MM", IFDlength=24989, displacement=12, section_index=7)
    at /home/rasmus/php43/ext/exif/exif.c:2990

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AllCommentsChangesGit/SVN commitsRelated reports
 [2005-01-22 02:18 UTC] sniper@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 [2020-08-12 08:16 UTC] cmb@php.net 
Related To: Bug #79907
 
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