From cf303f2f97c2b09ccb0df2743260cea531f7c6cc Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kspearrin@users.noreply.github.com>
Date: Tue, 28 Jul 2020 23:22:02 -0400
Subject: [PATCH] catch errors when trying to resolve DNS (#841)

---
 src/Icons/Services/IconFetchingService.cs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/Icons/Services/IconFetchingService.cs b/src/Icons/Services/IconFetchingService.cs
index d2acfe1069..9998340e03 100644
--- a/src/Icons/Services/IconFetchingService.cs
+++ b/src/Icons/Services/IconFetchingService.cs
@@ -292,8 +292,15 @@ namespace Bit.Icons.Services
             }
 
             // Resolve host to make sure it is not an internal/private IP address
-            var hostEntry = Dns.GetHostEntry(uri.Host);
-            if (hostEntry?.AddressList.Any(ip => IsInternal(ip)) ?? true)
+            try
+            {
+                var hostEntry = Dns.GetHostEntry(uri.Host);
+                if (hostEntry?.AddressList.Any(ip => IsInternal(ip)) ?? true)
+                {
+                    return null;
+                }
+            }
+            catch
             {
                 return null;
             }