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* libtiff/tif_jpeg.c: fix segfault in JPEGFixupTagsSubsampling() on

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corrupted image where tif->tif_dir.td_stripoffset == NULL (bug #2471)
This commit is contained in:
Even Rouault 2014-11-20 14:34:51 +00:00
parent d1be5cb7ad
commit 7af4d827dd
2 changed files with 6 additions and 1 deletions
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ChangeLog
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@ -1,3 +1,7 @@
2014-11-20 Even Rouault <even.rouault@spatialys.com>
* libtiff/tif_jpeg.c: fix segfault in JPEGFixupTagsSubsampling() on
corrupted image where tif->tif_dir.td_stripoffset == NULL (bug #2471)
2014-11-20 Even Rouault <even.rouault@spatialys.com>
* automake: updated to 1.14.1
* libtool: updated to 2.4.3

3
libtiff/tif_jpeg.c
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@ -1,4 +1,4 @@
/* $Id: tif_jpeg.c,v 1.111 2012-07-06 18:48:04 bfriesen Exp $ */
/* $Id: tif_jpeg.c,v 1.112 2014-11-20 14:34:51 erouault Exp $ */
/*
* Copyright (c) 1994-1997 Sam Leffler
@ -729,6 +729,7 @@ JPEGFixupTagsSubsampling(TIFF* tif)
_TIFFFillStriles( tif );
if( tif->tif_dir.td_stripbytecount == NULL
|| tif->tif_dir.td_stripoffset == NULL
|| tif->tif_dir.td_stripbytecount[0] == 0 )
{
/* Do not even try to check if the first strip/tile does not