diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | tools/tiff2pdf.c | 9 |
2 files changed, 14 insertions, 2 deletions
@@ -1,3 +1,10 @@ +2017-07-15 Even Rouault <even.rouault at spatialys.com> + + * tools/tiff2pdf.c: prevent heap buffer overflow write in "Raw" + mode on PlanarConfig=Contig input images. + Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2715 + Reported by team OWL337 + 2017-07-11 Even Rouault <even.rouault at spatialys.com> * libtiff/tif_dir.c: avoid potential null pointer dereference in diff --git a/tools/tiff2pdf.c b/tools/tiff2pdf.c index 8e4e24ef..caf64ee5 100644 --- a/tools/tiff2pdf.c +++ b/tools/tiff2pdf.c @@ -1,4 +1,4 @@ -/* $Id: tiff2pdf.c,v 1.101 2016-12-20 17:28:17 erouault Exp $ +/* $Id: tiff2pdf.c,v 1.102 2017-07-15 11:13:46 erouault Exp $ * * tiff2pdf - converts a TIFF image to a PDF document * @@ -1737,7 +1737,12 @@ void t2p_read_tiff_data(T2P* t2p, TIFF* input){ return; t2p->pdf_transcode = T2P_TRANSCODE_ENCODE; - if(t2p->pdf_nopassthrough==0){ + /* It seems that T2P_TRANSCODE_RAW mode doesn't support separate->contig */ + /* conversion. At least t2p_read_tiff_size and t2p_read_tiff_size_tile */ + /* do not take into account the number of samples, and thus */ + /* that can cause heap buffer overflows such as in */ + /* http://bugzilla.maptools.org/show_bug.cgi?id=2715 */ + if(t2p->pdf_nopassthrough==0 && t2p->tiff_planar!=PLANARCONFIG_SEPARATE){ #ifdef CCITT_SUPPORT if(t2p->tiff_compression==COMPRESSION_CCITTFAX4 ){ |