Exit MatchDomainName if pattern or string length reach 0.

Author: kareem-wolfssl

src/internal.c

@@ -13285,7 +13285,7 @@ int MatchDomainName(const char* pattern, int patternLen, const char* str,
         return 1;
 #endif
 
-    while (patternLen > 0) {
+    while (patternLen > 0 && strLen > 0) {
         /* Get the next pattern char to evaluate */
         char p = (char)XTOLOWER((unsigned char)*pattern);
         if (p == '\0')