From b8148f45947eee7461986536114949556f4eda40 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 19 Jun 2000 08:38:11 +0000
Subject: 2000-06-19

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@767 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 variable.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'variable.c')

diff --git a/variable.c b/variable.c
index e3da3615f0..177f61c76d 100644
--- a/variable.c
+++ b/variable.c
@@ -1337,6 +1337,8 @@ rb_cvar_set(klass, id, val)
 {
     VALUE tmp;
 
+    if (!OBJ_TAINTED(klass) && rb_safe_level() >= 4)
+	rb_raise(rb_eSecurityError, "Insecure: can't modify class variable");
     if (FL_TEST(klass, FL_SINGLETON)) {
 	klass = rb_iv_get(klass, "__attached__");
     }
-- 
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