Fix CVE-2018-10963: http://bugzilla.maptools.org/show_bug.cgi?id=2795 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10963 Patch copied from upstream source repository: https://gitlab.com/libtiff/libtiff/commit/de144fd228e4be8aa484c3caf3d814b6fa88c6d9 From de144fd228e4be8aa484c3caf3d814b6fa88c6d9 Mon Sep 17 00:00:00 2001 From: Even Rouault Date: Sat, 12 May 2018 14:24:15 +0200 Subject: [PATCH] TIFFWriteDirectorySec: avoid assertion. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2795. CVE-2018-10963 --- libtiff/tif_dirwrite.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/libtiff/tif_dirwrite.c b/libtiff/tif_dirwrite.c index 2430de6d..c15a28db 100644 --- a/libtiff/tif_dirwrite.c +++ b/libtiff/tif_dirwrite.c @@ -695,8 +695,11 @@ TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff) } break; default: - assert(0); /* we should never get here */ - break; + TIFFErrorExt(tif->tif_clientdata,module, + "Cannot write tag %d (%s)", + TIFFFieldTag(o), + o->field_name ? o->field_name : "unknown"); + goto bad; } } } -- 2.17.0