1 files changed, 4 insertions, 0 deletions
diff --git a/src/common/tortls.c b/src/common/tortls.c
index 156750853e..d8635675f8 100644
--- a/src/common/tortls.c
+++ b/src/common/tortls.c
@@ -2456,6 +2456,10 @@ dn_indicates_v3_cert(X509_NAME *name)
   if (len < 0) {
     return 0;
   }
+  if (len < 4) {
+    OPENSSL_free(s);
+    return 0;
+  }
   r = fast_memneq(s + len - 4, ".net", 4);
   OPENSSL_free(s);
   return r;