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45 lines
1.8 KiB
45 lines
1.8 KiB
From 69bfeec247899776b1b396651adb47436e5f1556 Mon Sep 17 00:00:00 2001
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From: Even Rouault <even.rouault@spatialys.com>
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Date: Sat, 15 Jul 2017 11:13:46 +0000
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Subject: [PATCH] * tools/tiff2pdf.c: prevent heap buffer overflow write in
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"Raw" mode on PlanarConfig=Contig input images. Fixes
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http://bugzilla.maptools.org/show_bug.cgi?id=2715 Reported by team OWL337
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---
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ChangeLog | 7 +++++++
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tools/tiff2pdf.c | 7 ++++++-
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2 files changed, 13 insertions(+), 1 deletion(-)
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diff --git a/ChangeLog b/ChangeLog
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index b4771234..1b5490f3 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,10 @@
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+2017-07-15 Even Rouault <even.rouault at spatialys.com>
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+
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+ * tools/tiff2pdf.c: prevent heap buffer overflow write in "Raw"
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+ mode on PlanarConfig=Contig input images.
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+ Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2715
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+ Reported by team OWL337
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+
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2017-07-11 Even Rouault <even.rouault at spatialys.com>
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* libtiff/tif_lzw.c: fix 4.0.8 regression in the decoding of old-style LZW
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diff --git a/tools/tiff2pdf.c b/tools/tiff2pdf.c
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index db196e04..cd1e2358 100644
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--- a/tools/tiff2pdf.c
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+++ b/tools/tiff2pdf.c
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@@ -1737,7 +1737,12 @@ void t2p_read_tiff_data(T2P* t2p, TIFF* input){
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return;
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t2p->pdf_transcode = T2P_TRANSCODE_ENCODE;
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- if(t2p->pdf_nopassthrough==0){
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+ /* It seems that T2P_TRANSCODE_RAW mode doesn't support separate->contig */
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+ /* conversion. At least t2p_read_tiff_size and t2p_read_tiff_size_tile */
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+ /* do not take into account the number of samples, and thus */
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+ /* that can cause heap buffer overflows such as in */
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+ /* http://bugzilla.maptools.org/show_bug.cgi?id=2715 */
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+ if(t2p->pdf_nopassthrough==0 && t2p->tiff_planar!=PLANARCONFIG_SEPARATE){
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#ifdef CCITT_SUPPORT
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if(t2p->tiff_compression==COMPRESSION_CCITTFAX4
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){
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