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guix/gnu/packages/patches/libtiff-CVE-2018-10963.patch

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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 <even.rouault@spatialys.com>
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