33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From 142912f9f5bce169d9d0b16a687c00f9edec5825 Mon Sep 17 00:00:00 2001
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From: Even Rouault <even.rouault@spatialys.com>
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Date: Sat, 12 May 2018 14:24:15 +0200
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Subject: [PATCH] (CVE-2018-10963) TIFFWriteDirectorySec: avoid assertion.
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Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2795. CVE-2018-10963
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(cherry picked from commit de144fd228e4be8aa484c3caf3d814b6fa88c6d9)
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---
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libtiff/tif_dirwrite.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/libtiff/tif_dirwrite.c b/libtiff/tif_dirwrite.c
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index c68d6d21..5d0a6699 100644
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--- a/libtiff/tif_dirwrite.c
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+++ b/libtiff/tif_dirwrite.c
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@@ -697,8 +697,11 @@ TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff)
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}
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break;
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default:
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- assert(0); /* we should never get here */
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- break;
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+ TIFFErrorExt(tif->tif_clientdata,module,
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+ "Cannot write tag %d (%s)",
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+ TIFFFieldTag(o),
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+ o->field_name ? o->field_name : "unknown");
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+ goto bad;
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}
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}
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}
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--
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2.34.1
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