File Fix-for-CVE-2019-20200-ezxml-bug-19.patch of Package netcdf.21641

From: Egbert Eich <eich@suse.com>
Date: Mon Oct 25 15:38:22 2021 +0200
Subject: Fix for CVE-2019-20200 / ezxml bug 19
Patch-mainline: Not yet
Git-commit: e350cbc3d4509526ebb78efbcc07ba21c32266d4
References: 

Make sure to not read past end of string after deleting '\r'.
This fixes
   https://sourceforge.net/p/ezxml/bugs/19/

Signed-off-by: Egbert Eich <eich@suse.com>
---
 libdap4/ezxml.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/libdap4/ezxml.c b/libdap4/ezxml.c
index 931ba24..17b2eb8 100644
--- a/libdap4/ezxml.c
+++ b/libdap4/ezxml.c
@@ -163,6 +163,7 @@ char *ezxml_decode(char *s, char **ent, char t)
             *(s++) = '\n';
             if (*s == '\n') memmove(s, (s + 1), strlen(s));
         }
+	if (!*s) break; // bug#19 / CVE-2019-20200
     }
     
     for (s = r; ; ) {