From 3767adabe2aadcaa053a11e4f8c2993486242d32 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Mon, 10 Feb 2020 16:19:53 +0100
Subject: PROJStringParser::Private::buildProjectedCRS(): avoid (harmless)
 division by zero in super odd case with corrupted PROJ string. Fixes
 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20624

---
 src/iso19111/io.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/iso19111/io.cpp b/src/iso19111/io.cpp
index b2358eb1..8a8ad526 100644
--- a/src/iso19111/io.cpp
+++ b/src/iso19111/io.cpp
@@ -8783,7 +8783,7 @@ CRSNNPtr PROJStringParser::Private::buildProjectedCRS(
                     if (k >= 0 && k <= 1) {
                         const double es =
                             geogCRS->ellipsoid()->squaredEccentricity();
-                        if (es < 0) {
+                        if (es < 0 || es == 1) {
                             throw ParsingException("Invalid flattening");
                         }
                         value =
-- 
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